yaffs-ecoscentric-gpl: yaffs

annotate yaffs_fs.c @ 385:d76a2de52a82

Add debug proc entry for gathering gc stats

author	charles <charles>
date	Mon, 15 Mar 2010 06:28:36 +0000
parents	c9e1700f2e05
children	8e0094175e71

rev	line source
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1 /*
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	2 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3 *
277 b55b92214eea This file escaped copyright date update. Fixed. wookey <wookey> parents: 276 diff changeset	4 * Copyright (C) 2002-2009 Aleph One Ltd.
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	5 * for Toby Churchill Ltd and Brightstar Engineering
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	6 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	7 * Created by Charles Manning <charles@aleph1.co.uk>
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	8 * Acknowledgements:
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	9 * Luc van OostenRyck for numerous patches.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	10 * Nick Bane for numerous patches.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	11 * Nick Bane for 2.5/2.6 integration.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	12 * Andras Toth for mknod rdev issue.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	13 * Michael Fischer for finding the problem with inode inconsistency.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	14 * Some code bodily lifted from JFFS
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	15 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	16 * This program is free software; you can redistribute it and/or modify
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	17 * it under the terms of the GNU General Public License version 2 as
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	18 * published by the Free Software Foundation.
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	19 */
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	20
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	21 /*
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	22 *
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	23 * This is the file system front-end to YAFFS that hooks it up to
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	24 * the VFS.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	25 *
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	26 * Special notes:
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	27 * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with
0113df80498c lindent marty <marty> parents: 70 diff changeset	28 * this superblock
0113df80498c lindent marty <marty> parents: 70 diff changeset	29 * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this
0113df80498c lindent marty <marty> parents: 70 diff changeset	30 * superblock
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	31 * >> inode->u.generic_ip points to the associated yaffs_Object.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	32 */
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	33
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	34 const char *yaffs_fs_c_version =
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	35 "$Id: yaffs_fs.c,v 1.100 2010-03-15 06:28:36 charles Exp $";
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	36 extern const char *yaffs_guts_c_version;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	37
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	38 #include <linux/version.h>
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	39
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	40 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10))
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	41 #define YAFFS_COMPILE_BACKGROUND
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	42 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	43
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	44 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	45 #include <linux/config.h>
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	46 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	47 #include <linux/kernel.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	48 #include <linux/module.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	49 #include <linux/slab.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	50 #include <linux/init.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	51 #include <linux/fs.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	52 #include <linux/proc_fs.h>
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	53 #include <linux/smp_lock.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	54 #include <linux/pagemap.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	55 #include <linux/mtd/mtd.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	56 #include <linux/interrupt.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	57 #include <linux/string.h>
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	58 #include <linux/ctype.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	59
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	60 #ifdef YAFFS_COMPILE_BACKGROUND
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	61 #include <linux/kthread.h>
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	62 #include <linux/delay.h>
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	63 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	64
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	65
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	66 #include "asm/div64.h"
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	67
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	68
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	69 #define LOCK_TRACE 0
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	70
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	71 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	72
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	73 #include <linux/statfs.h> /* Added NCB 15-8-2003 */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	74 #include <linux/statfs.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	75 #define UnlockPage(p) unlock_page(p)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	76 #define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	77
0113df80498c lindent marty <marty> parents: 70 diff changeset	78 /* FIXME: use sb->s_id instead ? */
0113df80498c lindent marty <marty> parents: 70 diff changeset	79 #define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	80
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	81 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	82
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	83 #include <linux/locks.h>
37 843d9d0add74 Fix devname which was faked by always using "(unavailable)". luc <luc> parents: 36 diff changeset	84 #define BDEVNAME_SIZE 0
843d9d0add74 Fix devname which was faked by always using "(unavailable)". luc <luc> parents: 36 diff changeset	85 #define yaffs_devname(sb, buf) kdevname(sb->s_dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	86
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	87 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	88 /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	89 #define __user
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	90 #endif
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	91
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	92 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	93
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	94 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	95 #define YPROC_ROOT (&proc_root)
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	96 #else
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	97 #define YPROC_ROOT NULL
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	98 #endif
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	99
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	100 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	101 #define WRITE_SIZE_STR "writesize"
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	102 #define WRITE_SIZE(mtd) ((mtd)->writesize)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	103 #else
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	104 #define WRITE_SIZE_STR "oobblock"
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	105 #define WRITE_SIZE(mtd) ((mtd)->oobblock)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	106 #endif
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	107
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	108 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	109 #define YAFFS_USE_WRITE_BEGIN_END 1
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	110 #else
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	111 #define YAFFS_USE_WRITE_BEGIN_END 0
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	112 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	113
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	114 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	115 static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	116 {
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	117 uint64_t result = partition_size;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	118 do_div(result, block_size);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	119 return (uint32_t)result;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	120 }
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	121 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	122 #define YCALCBLOCKS(s, b) ((s)/(b))
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	123 #endif
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	124
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	125 #include <linux/uaccess.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	126
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	127 #include "yportenv.h"
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	128 #include "yaffs_trace.h"
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	129 #include "yaffs_guts.h"
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	130
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	131 #include "yaffs_linux.h"
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	132
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	133 #include <linux/mtd/mtd.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	134 #include "yaffs_mtdif.h"
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	135 #include "yaffs_mtdif1.h"
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	136 #include "yaffs_mtdif2.h"
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	137
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	138 unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS \| YAFFS_TRACE_ALWAYS;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	139 unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	140 unsigned int yaffs_auto_checkpoint = 1;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	141
2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	142 /* Module Parameters */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	143 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	144 module_param(yaffs_traceMask, uint, 0644);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	145 module_param(yaffs_wr_attempts, uint, 0644);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	146 module_param(yaffs_auto_checkpoint, uint, 0644);
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	147 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	148 MODULE_PARM(yaffs_traceMask, "i");
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	149 MODULE_PARM(yaffs_wr_attempts, "i");
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	150 MODULE_PARM(yaffs_auto_checkpoint, "i");
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	151 #endif
2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	152
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	153 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	154 /* use iget and read_inode */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	155 #define Y_IGET(sb, inum) iget((sb), (inum))
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	156 static void yaffs_read_inode(struct inode *inode);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	157
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	158 #else
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	159 /* Call local equivalent */
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	160 #define YAFFS_USE_OWN_IGET
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	161 #define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	162
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	163 static struct inode yaffs_iget(struct super_block sb, unsigned long ino);
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	164 #endif
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	165
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	166 /#define T(x) printk x /
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	167
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	168 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	169 #define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	170 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	171 #define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	172 #endif
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	173
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	174 #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	175 #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	176
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	177 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	178 #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	179 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	180 #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	181 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	182
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	183
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	184 #define update_dir_time(dir) do {\
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	185 (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	186 } while(0)
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	187
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	188 static void yaffs_put_super(struct super_block *sb);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	189
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	190 static ssize_t yaffs_file_write(struct file f, const char buf, size_t n,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	191 loff_t *pos);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	192 static ssize_t yaffs_hold_space(struct file *f);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	193 static void yaffs_release_space(struct file *f);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	194
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	195 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	196 static int yaffs_file_flush(struct file *file, fl_owner_t id);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	197 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	198 static int yaffs_file_flush(struct file *file);
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	199 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	200
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	201 static int yaffs_sync_object(struct file file, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	202 int datasync);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	203
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	204 static int yaffs_readdir(struct file f, void dirent, filldir_t filldir);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	205
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	206 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	207 static int yaffs_create(struct inode dir, struct dentry dentry, int mode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	208 struct nameidata *n);
0113df80498c lindent marty <marty> parents: 70 diff changeset	209 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	210 struct nameidata *n);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	211 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	212 static int yaffs_create(struct inode dir, struct dentry dentry, int mode);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	213 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	214 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	215 static int yaffs_link(struct dentry old_dentry, struct inode dir,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	216 struct dentry *dentry);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	217 static int yaffs_unlink(struct inode dir, struct dentry dentry);
0113df80498c lindent marty <marty> parents: 70 diff changeset	218 static int yaffs_symlink(struct inode dir, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	219 const char *symname);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	220 static int yaffs_mkdir(struct inode dir, struct dentry dentry, int mode);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	221
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	222 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	223 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	224 dev_t dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	225 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	226 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	227 int dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	228 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	229 static int yaffs_rename(struct inode old_dir, struct dentry old_dentry,
0113df80498c lindent marty <marty> parents: 70 diff changeset	230 struct inode new_dir, struct dentry new_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	231 static int yaffs_setattr(struct dentry dentry, struct iattr attr);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	232
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	233 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	234 static int yaffs_sync_fs(struct super_block *sb, int wait);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	235 static void yaffs_write_super(struct super_block *sb);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	236 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	237 static int yaffs_sync_fs(struct super_block *sb);
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	238 static int yaffs_write_super(struct super_block *sb);
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	239 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	240
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	241 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	242 static int yaffs_statfs(struct dentry dentry, struct kstatfs buf);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	243 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	244 static int yaffs_statfs(struct super_block sb, struct kstatfs buf);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	245 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	246 static int yaffs_statfs(struct super_block sb, struct statfs buf);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	247 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	248
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	249 #ifdef YAFFS_HAS_PUT_INODE
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	250 static void yaffs_put_inode(struct inode *inode);
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	251 #endif
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	252
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	253 static void yaffs_delete_inode(struct inode *);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	254 static void yaffs_clear_inode(struct inode *);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	255
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	256 static int yaffs_readpage(struct file file, struct page page);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	257 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	258 static int yaffs_writepage(struct page page, struct writeback_control wbc);
7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	259 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	260 static int yaffs_writepage(struct page *page);
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	261 #endif
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	262
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	263
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	264 #if (YAFFS_USE_WRITE_BEGIN_END != 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	265 static int yaffs_write_begin(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	266 loff_t pos, unsigned len, unsigned flags,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	267 struct page pagep, void fsdata);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	268 static int yaffs_write_end(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	269 loff_t pos, unsigned len, unsigned copied,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	270 struct page pg, void fsdadata);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	271 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	272 static int yaffs_prepare_write(struct file f, struct page pg,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	273 unsigned offset, unsigned to);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	274 static int yaffs_commit_write(struct file f, struct page pg, unsigned offset,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	275 unsigned to);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	276
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	277 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	278
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	279 static int yaffs_readlink(struct dentry dentry, char __user buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	280 int buflen);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	281 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	282 static void yaffs_follow_link(struct dentry dentry, struct nameidata *nd);
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	283 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	284 static int yaffs_follow_link(struct dentry dentry, struct nameidata nd);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	285 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	286
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	287 static struct address_space_operations yaffs_file_address_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	288 .readpage = yaffs_readpage,
0113df80498c lindent marty <marty> parents: 70 diff changeset	289 .writepage = yaffs_writepage,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	290 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	291 .write_begin = yaffs_write_begin,
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	292 .write_end = yaffs_write_end,
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	293 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	294 .prepare_write = yaffs_prepare_write,
0113df80498c lindent marty <marty> parents: 70 diff changeset	295 .commit_write = yaffs_commit_write,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	296 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	297 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	298
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	299 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	300 static const struct file_operations yaffs_file_operations = {
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	301 .read = do_sync_read,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	302 .write = do_sync_write,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	303 .aio_read = generic_file_aio_read,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	304 .aio_write = generic_file_aio_write,
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	305 .mmap = generic_file_mmap,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	306 .flush = yaffs_file_flush,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	307 .fsync = yaffs_sync_object,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	308 .splice_read = generic_file_splice_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	309 .splice_write = generic_file_splice_write,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	310 .llseek = generic_file_llseek,
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	311 };
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	312
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	313 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	314
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	315 static const struct file_operations yaffs_file_operations = {
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	316 .read = do_sync_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	317 .write = do_sync_write,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	318 .aio_read = generic_file_aio_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	319 .aio_write = generic_file_aio_write,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	320 .mmap = generic_file_mmap,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	321 .flush = yaffs_file_flush,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	322 .fsync = yaffs_sync_object,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	323 .sendfile = generic_file_sendfile,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	324 };
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	325
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	326 #else
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	327
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	328 static const struct file_operations yaffs_file_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	329 .read = generic_file_read,
0113df80498c lindent marty <marty> parents: 70 diff changeset	330 .write = generic_file_write,
0113df80498c lindent marty <marty> parents: 70 diff changeset	331 .mmap = generic_file_mmap,
0113df80498c lindent marty <marty> parents: 70 diff changeset	332 .flush = yaffs_file_flush,
0113df80498c lindent marty <marty> parents: 70 diff changeset	333 .fsync = yaffs_sync_object,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	334 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
112 0f8838615001 Add generic sendfile method for yaffs2, also thereby allowing loopback mount. tpoynor <tpoynor> parents: 109 diff changeset	335 .sendfile = generic_file_sendfile,
0f8838615001 Add generic sendfile method for yaffs2, also thereby allowing loopback mount. tpoynor <tpoynor> parents: 109 diff changeset	336 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	337 };
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	338 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	339
346 e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	340 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	341 static void zero_user_segment(struct page *page, unsigned start, unsigned end)
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	342 {
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	343 void * kaddr = kmap_atomic(page, KM_USER0);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	344 memset(kaddr + start, 0, end - start);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	345 kunmap_atomic(kaddr, KM_USER0);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	346 flush_dcache_page(page);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	347 }
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	348 #endif
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	349
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	350
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	351 static const struct inode_operations yaffs_file_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	352 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	353 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	354
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	355 static const struct inode_operations yaffs_symlink_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	356 .readlink = yaffs_readlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	357 .follow_link = yaffs_follow_link,
0113df80498c lindent marty <marty> parents: 70 diff changeset	358 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	359 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	360
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	361 static const struct inode_operations yaffs_dir_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	362 .create = yaffs_create,
0113df80498c lindent marty <marty> parents: 70 diff changeset	363 .lookup = yaffs_lookup,
0113df80498c lindent marty <marty> parents: 70 diff changeset	364 .link = yaffs_link,
0113df80498c lindent marty <marty> parents: 70 diff changeset	365 .unlink = yaffs_unlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	366 .symlink = yaffs_symlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	367 .mkdir = yaffs_mkdir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	368 .rmdir = yaffs_unlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	369 .mknod = yaffs_mknod,
0113df80498c lindent marty <marty> parents: 70 diff changeset	370 .rename = yaffs_rename,
0113df80498c lindent marty <marty> parents: 70 diff changeset	371 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	372 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	373
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	374 static const struct file_operations yaffs_dir_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	375 .read = generic_read_dir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	376 .readdir = yaffs_readdir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	377 .fsync = yaffs_sync_object,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	378 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	379
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	380 static const struct super_operations yaffs_super_ops = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	381 .statfs = yaffs_statfs,
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	382
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	383 #ifndef YAFFS_USE_OWN_IGET
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	384 .read_inode = yaffs_read_inode,
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	385 #endif
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	386 #ifdef YAFFS_HAS_PUT_INODE
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	387 .put_inode = yaffs_put_inode,
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	388 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	389 .put_super = yaffs_put_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	390 .delete_inode = yaffs_delete_inode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	391 .clear_inode = yaffs_clear_inode,
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	392 .sync_fs = yaffs_sync_fs,
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	393 .write_super = yaffs_write_super,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	394 };
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	395
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	396 static void yaffs_GrossLock(yaffs_Device *dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	397 {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	398 T(LOCK_TRACE && YAFFS_TRACE_OS, ("yaffs locking %p\n", current));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	399 down(&(yaffs_DeviceToContext(dev)->grossLock));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	400 T(LOCK_TRACE && YAFFS_TRACE_OS, ("yaffs locked %p\n", current));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	401 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	402
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	403 static void yaffs_GrossUnlock(yaffs_Device *dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	404 {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	405 T(LOCK_TRACE && YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	406 up(&(yaffs_DeviceToContext(dev)->grossLock));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	407 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	408
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	409
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	410 /-----------------------------------------------------------------/
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	411 /* Directory search context allows us to unlock access to yaffs during
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	412 * filldir without causing problems with the directory being modified.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	413 * This is similar to the tried and tested mechanism used in yaffs direct.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	414 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	415 * A search context iterates along a doubly linked list of siblings in the
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	416 * directory. If the iterating object is deleted then this would corrupt
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	417 * the list iteration, likely causing a crash. The search context avoids
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	418 * this by using the removeObjectCallback to move the search context to the
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	419 * next object before the object is deleted.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	420 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	421 * Many readdirs (and thus seach conexts) may be alive simulateously so
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	422 * each yaffs_Device has a list of these.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	423 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	424 * A seach context lives for the duration of a readdir.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	425 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	426 * All these functions must be called while yaffs is locked.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	427 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	428
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	429 struct yaffs_SearchContext {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	430 yaffs_Device *dev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	431 yaffs_Object *dirObj;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	432 yaffs_Object *nextReturn;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	433 struct ylist_head others;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	434 };
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	435
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	436 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	437 * yaffs_NewSearch() creates a new search context, initialises it and
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	438 * adds it to the device's search context list.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	439 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	440 * Called at start of readdir.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	441 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	442 static struct yaffs_SearchContext * yaffs_NewSearch(yaffs_Object *dir)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	443 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	444 yaffs_Device *dev = dir->myDev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	445 struct yaffs_SearchContext *sc = YMALLOC(sizeof(struct yaffs_SearchContext));
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	446 if(sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	447 sc->dirObj = dir;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	448 sc->dev = dev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	449 if( ylist_empty(&sc->dirObj->variant.directoryVariant.children))
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	450 sc->nextReturn = NULL;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	451 else
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	452 sc->nextReturn = ylist_entry(
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	453 dir->variant.directoryVariant.children.next,
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	454 yaffs_Object,siblings);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	455 YINIT_LIST_HEAD(&sc->others);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	456 ylist_add(&sc->others,&(yaffs_DeviceToContext(dev)->searchContexts));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	457 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	458 return sc;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	459 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	460
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	461 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	462 * yaffs_EndSearch() disposes of a search context and cleans up.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	463 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	464 static void yaffs_EndSearch(struct yaffs_SearchContext * sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	465 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	466 if(sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	467 ylist_del(&sc->others);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	468 YFREE(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	469 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	470 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	471
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	472 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	473 * yaffs_SearchAdvance() moves a search context to the next object.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	474 * Called when the search iterates or when an object removal causes
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	475 * the search context to be moved to the next object.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	476 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	477 static void yaffs_SearchAdvance(struct yaffs_SearchContext *sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	478 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	479 if(!sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	480 return;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	481
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	482 if( sc->nextReturn == NULL \|\|
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	483 ylist_empty(&sc->dirObj->variant.directoryVariant.children))
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	484 sc->nextReturn = NULL;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	485 else {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	486 struct ylist_head *next = sc->nextReturn->siblings.next;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	487
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	488 if( next == &sc->dirObj->variant.directoryVariant.children)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	489 sc->nextReturn = NULL; /* end of list */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	490 else
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	491 sc->nextReturn = ylist_entry(next,yaffs_Object,siblings);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	492 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	493 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	494
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	495 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	496 * yaffs_RemoveObjectCallback() is called when an object is unlinked.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	497 * We check open search contexts and advance any which are currently
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	498 * on the object being iterated.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	499 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	500 static void yaffs_RemoveObjectCallback(yaffs_Object *obj)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	501 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	502
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	503 struct ylist_head *i;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	504 struct yaffs_SearchContext *sc;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	505 struct ylist_head *search_contexts = &(yaffs_DeviceToContext(obj->myDev)->searchContexts);
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	506
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	507
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	508 /* Iterate through the directory search contexts.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	509 * If any are currently on the object being removed, then advance
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	510 * the search context to the next object to prevent a hanging pointer.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	511 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	512 ylist_for_each(i, search_contexts) {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	513 if (i) {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	514 sc = ylist_entry(i, struct yaffs_SearchContext,others);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	515 if(sc->nextReturn == obj)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	516 yaffs_SearchAdvance(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	517 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	518 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	519
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	520 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	521
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	522
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	523 /-----------------------------------------------------------------/
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	524
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	525 static int yaffs_readlink(struct dentry dentry, char __user buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	526 int buflen)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	527 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	528 unsigned char *alias;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	529 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	530
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	531 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	532
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	533 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	534
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	535 alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	536
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	537 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	538
0113df80498c lindent marty <marty> parents: 70 diff changeset	539 if (!alias)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	540 return -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	541
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	542 ret = vfs_readlink(dentry, buffer, buflen, alias);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	543 kfree(alias);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	544 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	545 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	546
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	547 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	548 static void yaffs_follow_link(struct dentry dentry, struct nameidata *nd)
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	549 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	550 static int yaffs_follow_link(struct dentry dentry, struct nameidata nd)
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	551 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	552 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	553 unsigned char *alias;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	554 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	555 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	556
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	557 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	558
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	559 alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	560
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	561 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	562
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	563 if (!alias) {
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	564 ret = -ENOMEM;
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	565 goto out;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	566 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	567
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	568 ret = vfs_follow_link(nd, alias);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	569 kfree(alias);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	570 out:
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	571 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	572 return ERR_PTR(ret);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	573 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	574 return ret;
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	575 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	576 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	577
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	578 struct inode yaffs_get_inode(struct super_block sb, int mode, int dev,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	579 yaffs_Object *obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	580
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	581 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	582 * Lookup is used to find objects in the fs
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	583 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	584 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	585
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	586 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	587 struct nameidata *n)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	588 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	589 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	590 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	591 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	592 yaffs_Object *obj;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	593 struct inode inode = NULL; / NCB 2.5/2.6 needs NULL here */
0113df80498c lindent marty <marty> parents: 70 diff changeset	594
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	595 yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	596
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	597 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	598
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	599 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	600 ("yaffs_lookup for %d:%s\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	601 yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	602
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	603 obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	604 dentry->d_name.name);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	605
0113df80498c lindent marty <marty> parents: 70 diff changeset	606 obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	607
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	608 /* Can't hold gross lock when calling yaffs_get_inode() */
5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	609 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	610
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	611 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	612 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	613 ("yaffs_lookup found %d\n", obj->objectId));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	614
0113df80498c lindent marty <marty> parents: 70 diff changeset	615 inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
0113df80498c lindent marty <marty> parents: 70 diff changeset	616
0113df80498c lindent marty <marty> parents: 70 diff changeset	617 if (inode) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	618 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	619 ("yaffs_loookup dentry \n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	620 /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
0113df80498c lindent marty <marty> parents: 70 diff changeset	621 * d_add even if NULL inode */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	622 #if 0
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	623 /dget(dentry); // try to solve directory bug /
0113df80498c lindent marty <marty> parents: 70 diff changeset	624 d_add(dentry, inode);
0113df80498c lindent marty <marty> parents: 70 diff changeset	625
0113df80498c lindent marty <marty> parents: 70 diff changeset	626 /* return dentry; */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	627 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	628 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	629 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	630
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	631 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	632 T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	633
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	634 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	635
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	636 /* added NCB for 2.5/6 compatability - forces add even if inode is
0113df80498c lindent marty <marty> parents: 70 diff changeset	637 * NULL which creates dentry hash */
0113df80498c lindent marty <marty> parents: 70 diff changeset	638 d_add(dentry, inode);
0113df80498c lindent marty <marty> parents: 70 diff changeset	639
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	640 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	641 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	642
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	643
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	644 #ifdef YAFFS_HAS_PUT_INODE
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	645
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	646 /* For now put inode is just for debugging
0113df80498c lindent marty <marty> parents: 70 diff changeset	647 * Put inode is called when the inode structure is put.
0113df80498c lindent marty <marty> parents: 70 diff changeset	648 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	649 static void yaffs_put_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	650 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	651 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	652 ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	653 atomic_read(&inode->i_count)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	654
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	655 }
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	656 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	657
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	658 /* clear is called to tell the fs to release any per-inode data it holds */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	659 static void yaffs_clear_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	660 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	661 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	662 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	663
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	664 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	665
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	666 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	667 ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	668 atomic_read(&inode->i_count),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	669 obj ? "object exists" : "null object"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	670
0113df80498c lindent marty <marty> parents: 70 diff changeset	671 if (obj) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	672 dev = obj->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	673 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	674
0113df80498c lindent marty <marty> parents: 70 diff changeset	675 /* Clear the association between the inode and
0113df80498c lindent marty <marty> parents: 70 diff changeset	676 * the yaffs_Object.
0113df80498c lindent marty <marty> parents: 70 diff changeset	677 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	678 obj->myInode = NULL;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	679 yaffs_InodeToObjectLV(inode) = NULL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	680
0113df80498c lindent marty <marty> parents: 70 diff changeset	681 /* If the object freeing was deferred, then the real
0113df80498c lindent marty <marty> parents: 70 diff changeset	682 * free happens now.
0113df80498c lindent marty <marty> parents: 70 diff changeset	683 * This should fix the inode inconsistency problem.
0113df80498c lindent marty <marty> parents: 70 diff changeset	684 */
0113df80498c lindent marty <marty> parents: 70 diff changeset	685
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	686 yaffs_HandleDeferedFree(obj);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	687
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	688 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	689 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	690
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	691 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	692
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	693 /* delete is called when the link count is zero and the inode
0113df80498c lindent marty <marty> parents: 70 diff changeset	694 * is put (ie. nobody wants to know about it anymore, time to
0113df80498c lindent marty <marty> parents: 70 diff changeset	695 * delete the file).
0113df80498c lindent marty <marty> parents: 70 diff changeset	696 * NB Must call clear_inode()
0113df80498c lindent marty <marty> parents: 70 diff changeset	697 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	698 static void yaffs_delete_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	699 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	700 yaffs_Object *obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	701 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	702
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	703 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	704 ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	705 atomic_read(&inode->i_count),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	706 obj ? "object exists" : "null object"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	707
0113df80498c lindent marty <marty> parents: 70 diff changeset	708 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	709 dev = obj->myDev;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	710 yaffs_GrossLock(dev);
268 f13c5ef026ec Change inode deletion to prevent issue raised by YBUG charles <charles> parents: 267 diff changeset	711 yaffs_DeleteObject(obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	712 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	713 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	714 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	715 truncate_inode_pages(&inode->i_data, 0);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	716 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	717 clear_inode(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	718 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	719
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	720 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	721 static int yaffs_file_flush(struct file *file, fl_owner_t id)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	722 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	723 static int yaffs_file_flush(struct file *file)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	724 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	725 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	726 yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	727
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	728 yaffs_Device *dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	729
0113df80498c lindent marty <marty> parents: 70 diff changeset	730 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	731 ("yaffs_file_flush object %d (%s)\n", obj->objectId,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	732 obj->dirty ? "dirty" : "clean"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	733
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	734 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	735
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	736 yaffs_FlushFile(obj, 1, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	737
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	738 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	739
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	740 return 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	741 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	742
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	743 static int yaffs_readpage_nolock(struct file f, struct page pg)
0113df80498c lindent marty <marty> parents: 70 diff changeset	744 {
0113df80498c lindent marty <marty> parents: 70 diff changeset	745 /* Lifted from jffs2 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	746
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	747 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	748 unsigned char *pg_buf;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	749 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	750
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	751 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	752
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	753 T(YAFFS_TRACE_OS, ("yaffs_readpage_nolock at %08x, size %08x\n",
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	754 (unsigned)(pg->index << PAGE_CACHE_SHIFT),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	755 (unsigned)PAGE_CACHE_SIZE));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	756
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	757 obj = yaffs_DentryToObject(f->f_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	758
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	759 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	760
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	761 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	762 BUG_ON(!PageLocked(pg));
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	763 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	764 if (!PageLocked(pg))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	765 PAGE_BUG(pg);
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	766 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	767
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	768 pg_buf = kmap(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	769 /* FIXME: Can kmap fail? */
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	770
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	771 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	772
276 319f24142eed One whitespace fix wookey <wookey> parents: 273 diff changeset	773 ret = yaffs_ReadDataFromFile(obj, pg_buf,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	774 pg->index << PAGE_CACHE_SHIFT,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	775 PAGE_CACHE_SIZE);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	776
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	777 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	778
0113df80498c lindent marty <marty> parents: 70 diff changeset	779 if (ret >= 0)
0113df80498c lindent marty <marty> parents: 70 diff changeset	780 ret = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	781
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	782 if (ret) {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	783 ClearPageUptodate(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	784 SetPageError(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	785 } else {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	786 SetPageUptodate(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	787 ClearPageError(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	788 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	789
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	790 flush_dcache_page(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	791 kunmap(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	792
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	793 T(YAFFS_TRACE_OS, ("yaffs_readpage_nolock done\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	794 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	795 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	796
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	797 static int yaffs_readpage_unlock(struct file f, struct page pg)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	798 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	799 int ret = yaffs_readpage_nolock(f, pg);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	800 UnlockPage(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	801 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	802 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	803
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	804 static int yaffs_readpage(struct file f, struct page pg)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	805 {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	806 int ret;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	807
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	808 T(YAFFS_TRACE_OS, ("yaffs_readpage\n"));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	809 ret=yaffs_readpage_unlock(f, pg);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	810 T(YAFFS_TRACE_OS, ("yaffs_readpage done\n"));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	811 return ret;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	812 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	813
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	814 /* writepage inspired by/stolen from smbfs */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	815
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	816 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	817 static int yaffs_writepage(struct page page, struct writeback_control wbc)
7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	818 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	819 static int yaffs_writepage(struct page *page)
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	820 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	821 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	822 struct address_space *mapping = page->mapping;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	823 struct inode *inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	824 unsigned long end_index;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	825 char *buffer;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	826 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	827 int nWritten = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	828 unsigned nBytes;
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	829 loff_t i_size;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	830
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	831 if (!mapping)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	832 BUG();
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	833 inode = mapping->host;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	834 if (!inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	835 BUG();
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	836 i_size = i_size_read(inode);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	837
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	838 end_index = i_size >> PAGE_CACHE_SHIFT;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	839
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	840 if(page->index < end_index)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	841 nBytes = PAGE_CACHE_SIZE;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	842 else {
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	843 nBytes = i_size & (PAGE_CACHE_SIZE -1);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	844
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	845 if (page->index > end_index \|\| !nBytes) {
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	846 T(YAFFS_TRACE_OS,
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	847 ("yaffs_writepage at %08x, inode size = %08x!!!\n",
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	848 (unsigned)(page->index << PAGE_CACHE_SHIFT),
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	849 (unsigned)inode->i_size));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	850 T(YAFFS_TRACE_OS,
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	851 (" -> don't care!!\n"));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	852
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	853 zero_user_segment(page,0,PAGE_CACHE_SIZE);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	854 set_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	855 unlock_page(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	856 end_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	857 return 0;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	858 }
67 cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	859 }
cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	860
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	861 if(nBytes != PAGE_CACHE_SIZE)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	862 zero_user_segment(page,nBytes,PAGE_CACHE_SIZE);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	863
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	864 get_page(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	865
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	866 buffer = kmap(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	867
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	868 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	869 yaffs_GrossLock(obj->myDev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	870
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	871 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	872 ("yaffs_writepage at %08x, size %08x\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	873 (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	874 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	875 ("writepag0: obj = %05x, ino = %05x\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	876 (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	877
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	878 nWritten = yaffs_WriteDataToFile(obj, buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	879 page->index << PAGE_CACHE_SHIFT, nBytes, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	880
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	881 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	882 ("writepag1: obj = %05x, ino = %05x\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	883 (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
67 cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	884
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	885 yaffs_GrossUnlock(obj->myDev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	886
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	887 kunmap(page);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	888 set_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	889 unlock_page(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	890 end_page_writeback(page);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	891 put_page(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	892
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	893 return (nWritten == nBytes) ? 0 : -ENOSPC;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	894 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	895
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	896
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	897 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	898 static int yaffs_write_begin(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	899 loff_t pos, unsigned len, unsigned flags,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	900 struct page pagep, void fsdata)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	901 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	902 struct page *pg = NULL;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	903 pgoff_t index = pos >> PAGE_CACHE_SHIFT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	904
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	905 int ret = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	906 int space_held = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	907
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	908 /* Get a page */
289 850410979014 More recent 2.6.8 versions need this change too charles <charles> parents: 280 diff changeset	909 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	910 pg = grab_cache_page_write_begin(mapping, index, flags);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	911 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	912 pg = __grab_cache_page(mapping, index);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	913 #endif
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	914
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	915 *pagep = pg;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	916 if (!pg) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	917 ret = -ENOMEM;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	918 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	919 }
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	920 T(YAFFS_TRACE_OS, ("start yaffs_write_begin index %d(%x) uptodate %d\n",(int)index,(int)index,Page_Uptodate(pg) ? 1 : 0));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	921
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	922 /* Get fs space */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	923 space_held = yaffs_hold_space(filp);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	924
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	925 if (!space_held) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	926 ret = -ENOSPC;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	927 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	928 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	929
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	930 /* Update page if required */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	931
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	932 if (!Page_Uptodate(pg))
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	933 ret = yaffs_readpage_nolock(filp, pg);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	934
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	935 if (ret)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	936 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	937
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	938 /* Happy path return */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	939 T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	940
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	941 return 0;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	942
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	943 out:
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	944 T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	945 if (space_held)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	946 yaffs_release_space(filp);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	947 if (pg) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	948 unlock_page(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	949 page_cache_release(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	950 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	951 return ret;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	952 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	953
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	954 #else
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	955
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	956 static int yaffs_prepare_write(struct file f, struct page pg,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	957 unsigned offset, unsigned to)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	958 {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	959 T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	960
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	961 if (!Page_Uptodate(pg))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	962 return yaffs_readpage_nolock(f, pg);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	963 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	964 }
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	965 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	966
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	967 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	968 static int yaffs_write_end(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	969 loff_t pos, unsigned len, unsigned copied,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	970 struct page pg, void fsdadata)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	971 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	972 int ret = 0;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	973 void addr, kva;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	974 uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	975
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	976 kva = kmap(pg);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	977 addr = kva + offset_into_page;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	978
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	979 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	980 ("yaffs_write_end addr %x pos %x nBytes %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	981 (unsigned) addr,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	982 (int)pos, copied));
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	983
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	984 ret = yaffs_file_write(filp, addr, copied, &pos);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	985
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	986 if (ret != copied) {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	987 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	988 ("yaffs_write_end not same size ret %d copied %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	989 ret, copied));
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	990 SetPageError(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	991 } else {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	992 /* Nothing */
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	993 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	994
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	995 kunmap(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	996
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	997 yaffs_release_space(filp);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	998 unlock_page(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	999 page_cache_release(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1000 return ret;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1001 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1002 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1003
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1004 static int yaffs_commit_write(struct file f, struct page pg, unsigned offset,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1005 unsigned to)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1006 {
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1007 void addr, kva;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1008
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1009 loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1010 int nBytes = to - offset;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1011 int nWritten;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1012
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1013 unsigned spos = pos;
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1014 unsigned saddr;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1015
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1016 kva = kmap(pg);
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1017 addr = kva + offset;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1018
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1019 saddr = (unsigned) addr;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1020
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1021 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1022 ("yaffs_commit_write addr %x pos %x nBytes %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1023 saddr, spos, nBytes));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1024
0113df80498c lindent marty <marty> parents: 70 diff changeset	1025 nWritten = yaffs_file_write(f, addr, nBytes, &pos);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1026
0113df80498c lindent marty <marty> parents: 70 diff changeset	1027 if (nWritten != nBytes) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1028 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1029 ("yaffs_commit_write not same size nWritten %d nBytes %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1030 nWritten, nBytes));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1031 SetPageError(pg);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1032 } else {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1033 /* Nothing */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1034 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1035
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1036 kunmap(pg);
fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1037
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1038 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1039 ("yaffs_commit_write returning %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1040 nWritten == nBytes ? 0 : nWritten));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1041
113 325f5d3a757c Handle partial writes more gracefully: return partial byte counts, return tpoynor <tpoynor> parents: 112 diff changeset	1042 return nWritten == nBytes ? 0 : nWritten;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1043 }
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1044 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1045
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1046
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1047 static void yaffs_FillInodeFromObject(struct inode inode, yaffs_Object obj)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1048 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1049 if (inode && obj) {
139 26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1050
26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1051
26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1052 /* Check mode against the variant type and attempt to repair if broken. */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1053 __u32 mode = obj->yst_mode;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1054 switch (obj->variantType) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1055 case YAFFS_OBJECT_TYPE_FILE:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1056 if (!S_ISREG(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1057 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1058 obj->yst_mode \|= S_IFREG;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1059 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1060
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1061 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1062 case YAFFS_OBJECT_TYPE_SYMLINK:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1063 if (!S_ISLNK(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1064 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1065 obj->yst_mode \|= S_IFLNK;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1066 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1067
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1068 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1069 case YAFFS_OBJECT_TYPE_DIRECTORY:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1070 if (!S_ISDIR(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1071 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1072 obj->yst_mode \|= S_IFDIR;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1073 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1074
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1075 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1076 case YAFFS_OBJECT_TYPE_UNKNOWN:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1077 case YAFFS_OBJECT_TYPE_HARDLINK:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1078 case YAFFS_OBJECT_TYPE_SPECIAL:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1079 default:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1080 /* TODO? */
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1081 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1082 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1083
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1084 inode->i_flags \|= S_NOATIME;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1085
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1086 inode->i_ino = obj->objectId;
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1087 inode->i_mode = obj->yst_mode;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1088 inode->i_uid = obj->yst_uid;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1089 inode->i_gid = obj->yst_gid;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1090 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1091 inode->i_blksize = inode->i_sb->s_blocksize;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1092 #endif
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1093 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1094
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1095 inode->i_rdev = old_decode_dev(obj->yst_rdev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1096 inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1097 inode->i_atime.tv_nsec = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1098 inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1099 inode->i_mtime.tv_nsec = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1100 inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1101 inode->i_ctime.tv_nsec = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1102 #else
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1103 inode->i_rdev = obj->yst_rdev;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1104 inode->i_atime = obj->yst_atime;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1105 inode->i_mtime = obj->yst_mtime;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1106 inode->i_ctime = obj->yst_ctime;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1107 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1108 inode->i_size = yaffs_GetObjectFileLength(obj);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1109 inode->i_blocks = (inode->i_size + 511) >> 9;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1110
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1111 inode->i_nlink = yaffs_GetObjectLinkCount(obj);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1112
0113df80498c lindent marty <marty> parents: 70 diff changeset	1113 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1114 ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1115 inode->i_mode, inode->i_uid, inode->i_gid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1116 (int)inode->i_size, atomic_read(&inode->i_count)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1117
0113df80498c lindent marty <marty> parents: 70 diff changeset	1118 switch (obj->yst_mode & S_IFMT) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1119 default: /* fifo, device or socket */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1120 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1121 init_special_inode(inode, obj->yst_mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1122 old_decode_dev(obj->yst_rdev));
12 e0fa36dd109b Fix 2.6 special inodes charles <charles> parents: 10 diff changeset	1123 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1124 init_special_inode(inode, obj->yst_mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1125 (dev_t) (obj->yst_rdev));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1126 #endif
0113df80498c lindent marty <marty> parents: 70 diff changeset	1127 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1128 case S_IFREG: /* file */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1129 inode->i_op = &yaffs_file_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1130 inode->i_fop = &yaffs_file_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1131 inode->i_mapping->a_ops =
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1132 &yaffs_file_address_operations;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1133 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1134 case S_IFDIR: /* directory */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1135 inode->i_op = &yaffs_dir_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1136 inode->i_fop = &yaffs_dir_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1137 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1138 case S_IFLNK: /* symlink */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1139 inode->i_op = &yaffs_symlink_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1140 break;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1141 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1142
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1143 yaffs_InodeToObjectLV(inode) = obj;
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1144
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1145 obj->myInode = inode;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1146
0113df80498c lindent marty <marty> parents: 70 diff changeset	1147 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1148 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1149 ("yaffs_FileInode invalid parameters\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1150 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1151
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1152 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1153
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1154 struct inode yaffs_get_inode(struct super_block sb, int mode, int dev,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1155 yaffs_Object *obj)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1156 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1157 struct inode *inode;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1158
0113df80498c lindent marty <marty> parents: 70 diff changeset	1159 if (!sb) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1160 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1161 ("yaffs_get_inode for NULL super_block!!\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1162 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1163
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1164 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1165
0113df80498c lindent marty <marty> parents: 70 diff changeset	1166 if (!obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1167 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1168 ("yaffs_get_inode for NULL object!!\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1169 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1170
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1171 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1172
0113df80498c lindent marty <marty> parents: 70 diff changeset	1173 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1174 ("yaffs_get_inode for object %d\n", obj->objectId));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1175
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1176 inode = Y_IGET(sb, obj->objectId);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1177 if (IS_ERR(inode))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1178 return NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1179
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1180 /* NB Side effect: iget calls back to yaffs_read_inode(). */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1181 /* iget also increments the inode's i_count */
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1182 /* NB You can't be holding grossLock or deadlock will happen! */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1183
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1184 return inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1185 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1186
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1187 static ssize_t yaffs_file_write(struct file f, const char buf, size_t n,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1188 loff_t *pos)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1189 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1190 yaffs_Object *obj;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1191 int nWritten, ipos;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1192 struct inode *inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1193 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1194
0113df80498c lindent marty <marty> parents: 70 diff changeset	1195 obj = yaffs_DentryToObject(f->f_dentry);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1196
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1197 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1198
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1199 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1200
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1201 inode = f->f_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1202
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1203 if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1204 ipos = inode->i_size;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1205 else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1206 ipos = *pos;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1207
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1208 if (!obj)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1209 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1210 ("yaffs_file_write: hey obj is null!\n"));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1211 else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1212 T(YAFFS_TRACE_OS,
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1213 ("yaffs_file_write about to write writing %u(%x) bytes"
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1214 "to object %d at %d(%x)\n",
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1215 (unsigned) n, (unsigned) n, obj->objectId, ipos,ipos));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1216
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1217 nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1218
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1219 T(YAFFS_TRACE_OS,
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1220 ("yaffs_file_write: %d(%x) bytes written\n",
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1221 (unsigned )n,(unsigned)n));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1222
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1223 if (nWritten > 0) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1224 ipos += nWritten;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1225 *pos = ipos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1226 if (ipos > inode->i_size) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1227 inode->i_size = ipos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1228 inode->i_blocks = (ipos + 511) >> 9;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1229
0113df80498c lindent marty <marty> parents: 70 diff changeset	1230 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1231 ("yaffs_file_write size updated to %d bytes, "
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1232 "%d blocks\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1233 ipos, (int)(inode->i_blocks)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1234 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1235
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1236 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1237 yaffs_GrossUnlock(dev);
278 ba8a7124dc1f Fix -ENOSPC to work properly with zero length writes charles <charles> parents: 277 diff changeset	1238 return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1239 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1240
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1241 /* Space holding and freeing is done to ensure we have space available for write_begin/end */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1242 /* For now we just assume few parallel writes and check against a small number. */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1243 /* Todo: need to do this with a counter to handle parallel reads better */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1244
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1245 static ssize_t yaffs_hold_space(struct file *f)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1246 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1247 yaffs_Object *obj;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1248 yaffs_Device *dev;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1249
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1250 int nFreeChunks;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1251
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1252
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1253 obj = yaffs_DentryToObject(f->f_dentry);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1254
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1255 dev = obj->myDev;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1256
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1257 yaffs_GrossLock(dev);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1258
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1259 nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1260
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1261 yaffs_GrossUnlock(dev);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1262
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1263 return (nFreeChunks > 20) ? 1 : 0;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1264 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1265
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1266 static void yaffs_release_space(struct file *f)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1267 {
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1268 yaffs_Object *obj;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1269 yaffs_Device *dev;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1270
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1271
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1272 obj = yaffs_DentryToObject(f->f_dentry);
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1273
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1274 dev = obj->myDev;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1275
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1276 yaffs_GrossLock(dev);
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1277
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1278
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1279 yaffs_GrossUnlock(dev);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1280 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1281
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1282 static int yaffs_readdir(struct file f, void dirent, filldir_t filldir)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1283 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1284 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1285 yaffs_Device *dev;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1286 struct yaffs_SearchContext *sc;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1287 struct inode *inode = f->f_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1288 unsigned long offset, curoffs;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1289 yaffs_Object *l;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1290 int retVal = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1291
0113df80498c lindent marty <marty> parents: 70 diff changeset	1292 char name[YAFFS_MAX_NAME_LENGTH + 1];
0113df80498c lindent marty <marty> parents: 70 diff changeset	1293
0113df80498c lindent marty <marty> parents: 70 diff changeset	1294 obj = yaffs_DentryToObject(f->f_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1295 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1296
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1297 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1298
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1299 offset = f->f_pos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1300
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1301 sc = yaffs_NewSearch(obj);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1302 if(!sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1303 retVal = -ENOMEM;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1304 goto unlock_out;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1305 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1306
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1307 T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset));
0113df80498c lindent marty <marty> parents: 70 diff changeset	1308
0113df80498c lindent marty <marty> parents: 70 diff changeset	1309 if (offset == 0) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1310 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1311 ("yaffs_readdir: entry . ino %d \n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1312 (int)inode->i_ino));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1313 yaffs_GrossUnlock(dev);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1314 if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1315 goto out;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1316 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1317 offset++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1318 f->f_pos++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1319 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1320 if (offset == 1) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1321 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1322 ("yaffs_readdir: entry .. ino %d \n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1323 (int)f->f_dentry->d_parent->d_inode->i_ino));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1324 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1325 if (filldir(dirent, "..", 2, offset,
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1326 f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1327 goto out;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1328 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1329 offset++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1330 f->f_pos++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1331 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1332
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1333 curoffs = 1;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1334
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1335 /* If the directory has changed since the open or last call to
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1336 readdir, rewind to after the 2 canned entries. */
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1337
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1338 if (f->f_version != inode->i_version) {
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1339 offset = 2;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1340 f->f_pos = offset;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1341 f->f_version = inode->i_version;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1342 }
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1343
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1344 while(sc->nextReturn){
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1345 curoffs++;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1346 l = sc->nextReturn;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1347 if (curoffs >= offset) {
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1348 int this_inode = yaffs_GetObjectInode(l);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1349 int this_type = yaffs_GetObjectType(l);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1350
0113df80498c lindent marty <marty> parents: 70 diff changeset	1351 yaffs_GetObjectName(l, name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1352 YAFFS_MAX_NAME_LENGTH + 1);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1353 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1354 ("yaffs_readdir: %s inode %d\n", name,
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1355 yaffs_GetObjectInode(l)));
0113df80498c lindent marty <marty> parents: 70 diff changeset	1356
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1357 yaffs_GrossUnlock(dev);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1358
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1359 if (filldir(dirent,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1360 name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1361 strlen(name),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1362 offset,
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1363 this_inode,
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1364 this_type) < 0)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1365 goto out;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1366
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1367 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1368
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1369 offset++;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1370 f->f_pos++;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1371 }
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1372 yaffs_SearchAdvance(sc);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1373 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1374
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1375 unlock_out:
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1376 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1377 out:
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1378 yaffs_EndSearch(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1379
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1380 return retVal;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1381 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1382
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1383 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1384 * File creation. Allocate an inode, and we're done..
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1385 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1386
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1387 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1388 #define YCRED(x) x
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1389 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1390 #define YCRED(x) (x->cred)
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1391 #endif
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1392
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1393 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1394 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1395 dev_t rdev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1396 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1397 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1398 int rdev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1399 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1400 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1401 struct inode *inode;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1402
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1403 yaffs_Object *obj = NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1404 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1405
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1406 yaffs_Object *parent = yaffs_InodeToObject(dir);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1407
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1408 int error = -ENOSPC;
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1409 uid_t uid = YCRED(current)->fsuid;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1410 gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1411
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1412 if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
133 2f69a6372caf Fix SGID problem charles <charles> parents: 131 diff changeset	1413 mode \|= S_ISGID;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1414
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1415 if (parent) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1416 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1417 ("yaffs_mknod: parent object %d type %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1418 parent->objectId, parent->variantType));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1419 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1420 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1421 ("yaffs_mknod: could not get parent object\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1422 return -EPERM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1423 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1424
0113df80498c lindent marty <marty> parents: 70 diff changeset	1425 T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1426 "mode %x dev %x\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1427 dentry->d_name.name, mode, rdev));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1428
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1429 dev = parent->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1430
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1431 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1432
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1433 switch (mode & S_IFMT) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1434 default:
0113df80498c lindent marty <marty> parents: 70 diff changeset	1435 /* Special (socket, fifo, device...) */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1436 T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1437 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1438 obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1439 gid, old_encode_dev(rdev));
12 e0fa36dd109b Fix 2.6 special inodes charles <charles> parents: 10 diff changeset	1440 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1441 obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1442 gid, rdev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1443 #endif
0113df80498c lindent marty <marty> parents: 70 diff changeset	1444 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1445 case S_IFREG: /* file */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1446 T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1447 obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1448 gid);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1449 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1450 case S_IFDIR: /* directory */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1451 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1452 ("yaffs_mknod: making directory\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1453 obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1454 uid, gid);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1455 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1456 case S_IFLNK: /* symlink */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1457 T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1458 obj = NULL; /* Do we ever get here? */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1459 break;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1460 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1461
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1462 /* Can not call yaffs_get_inode() with gross lock held */
5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1463 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1464
0113df80498c lindent marty <marty> parents: 70 diff changeset	1465 if (obj) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1466 inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1467 d_instantiate(dentry, inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1468 update_dir_time(dir);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1469 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1470 ("yaffs_mknod created object %d count = %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1471 obj->objectId, atomic_read(&inode->i_count)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1472 error = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1473 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1474 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1475 ("yaffs_mknod failed making object\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1476 error = -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1477 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1478
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1479 return error;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1480 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1481
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1482 static int yaffs_mkdir(struct inode dir, struct dentry dentry, int mode)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1483 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1484 int retVal;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1485 T(YAFFS_TRACE_OS, ("yaffs_mkdir\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1486 retVal = yaffs_mknod(dir, dentry, mode \| S_IFDIR, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1487 return retVal;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1488 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1489
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1490 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1491 static int yaffs_create(struct inode dir, struct dentry dentry, int mode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1492 struct nameidata *n)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1493 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1494 static int yaffs_create(struct inode dir, struct dentry dentry, int mode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1495 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1496 {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1497 T(YAFFS_TRACE_OS, ("yaffs_create\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1498 return yaffs_mknod(dir, dentry, mode \| S_IFREG, 0);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1499 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1500
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1501 static int yaffs_unlink(struct inode dir, struct dentry dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1502 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1503 int retVal;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1504
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1505 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1506
0113df80498c lindent marty <marty> parents: 70 diff changeset	1507 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1508 ("yaffs_unlink %d:%s\n", (int)(dir->i_ino),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1509 dentry->d_name.name));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1510
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1511 dev = yaffs_InodeToObject(dir)->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1512
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1513 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1514
0113df80498c lindent marty <marty> parents: 70 diff changeset	1515 retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1516
0113df80498c lindent marty <marty> parents: 70 diff changeset	1517 if (retVal == YAFFS_OK) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1518 dentry->d_inode->i_nlink--;
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1519 dir->i_version++;
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1520 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1521 mark_inode_dirty(dentry->d_inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1522 update_dir_time(dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1523 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1524 }
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1525 yaffs_GrossUnlock(dev);
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1526 return -ENOTEMPTY;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1527 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1528
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1529 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1530 * Create a link...
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1531 */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1532 static int yaffs_link(struct dentry old_dentry, struct inode dir,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1533 struct dentry *dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1534 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1535 struct inode *inode = old_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1536 yaffs_Object *obj = NULL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1537 yaffs_Object *link = NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1538 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1539
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1540 T(YAFFS_TRACE_OS, ("yaffs_link\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1541
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1542 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1543 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1544
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1545 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1546
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1547 if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1548 link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1549 obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1550
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1551 if (link) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1552 old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1553 d_instantiate(dentry, old_dentry->d_inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1554 atomic_inc(&old_dentry->d_inode->i_count);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1555 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1556 ("yaffs_link link count %d i_count %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1557 old_dentry->d_inode->i_nlink,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1558 atomic_read(&old_dentry->d_inode->i_count)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1559 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1560
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1561 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1562
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1563 if (link){
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1564 update_dir_time(dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1565 return 0;
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1566 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1567
0113df80498c lindent marty <marty> parents: 70 diff changeset	1568 return -EPERM;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1569 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1570
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1571 static int yaffs_symlink(struct inode dir, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1572 const char *symname)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1573 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1574 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1575 yaffs_Device *dev;
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1576 uid_t uid = YCRED(current)->fsuid;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1577 gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1578
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1579 T(YAFFS_TRACE_OS, ("yaffs_symlink\n"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1580
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1581 dev = yaffs_InodeToObject(dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1582 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1583 obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1584 S_IFLNK \| S_IRWXUGO, uid, gid, symname);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1585 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1586
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1587 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1588 struct inode *inode;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1589
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1590 inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1591 d_instantiate(dentry, inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1592 update_dir_time(dir);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1593 T(YAFFS_TRACE_OS, ("symlink created OK\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1594 return 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1595 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1596 T(YAFFS_TRACE_OS, ("symlink not created\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1597 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1598
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1599 return -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1600 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1601
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1602 static int yaffs_sync_object(struct file file, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1603 int datasync)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1604 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1605
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1606 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1607 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1608
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1609 obj = yaffs_DentryToObject(dentry);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1610
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1611 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1612
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	1613 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC, ("yaffs_sync_object\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1614 yaffs_GrossLock(dev);
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1615 yaffs_FlushFile(obj, 1, datasync);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1616 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1617 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1618 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1619
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1620 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1621 * The VFS layer already does all the dentry stuff for rename.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1622 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1623 * NB: POSIX says you can rename an object over an old object of the same name
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1624 */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1625 static int yaffs_rename(struct inode old_dir, struct dentry old_dentry,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1626 struct inode new_dir, struct dentry new_dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1627 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1628 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1629 int retVal = YAFFS_FAIL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1630 yaffs_Object *target;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1631
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1632 T(YAFFS_TRACE_OS, ("yaffs_rename\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1633 dev = yaffs_InodeToObject(old_dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1634
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1635 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1636
0113df80498c lindent marty <marty> parents: 70 diff changeset	1637 /* Check if the target is an existing directory that is not empty. */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1638 target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1639 new_dentry->d_name.name);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1640
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1641
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1642
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1643 if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1644 !ylist_empty(&target->variant.directoryVariant.children)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1645
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1646 T(YAFFS_TRACE_OS, ("target is non-empty dir\n"));
83 409ff4ae7a4a Fix rename over problem charles <charles> parents: 76 diff changeset	1647
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1648 retVal = YAFFS_FAIL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1649 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1650 /* Now does unlinking internally using shadowing mechanism */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1651 T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n"));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1652
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1653 retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1654 old_dentry->d_name.name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1655 yaffs_InodeToObject(new_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1656 new_dentry->d_name.name);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1657 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1658 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1659
0113df80498c lindent marty <marty> parents: 70 diff changeset	1660 if (retVal == YAFFS_OK) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1661 if (target) {
88 0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1662 new_dentry->d_inode->i_nlink--;
0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1663 mark_inode_dirty(new_dentry->d_inode);
0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1664 }
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1665
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1666 update_dir_time(old_dir);
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1667 if(old_dir != new_dir)
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1668 update_dir_time(new_dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1669 return 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1670 } else {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1671 return -ENOTEMPTY;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1672 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1673 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1674
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1675 static int yaffs_setattr(struct dentry dentry, struct iattr attr)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1676 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1677 struct inode *inode = dentry->d_inode;
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1678 int error = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1679 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1680
0113df80498c lindent marty <marty> parents: 70 diff changeset	1681 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1682 ("yaffs_setattr of object %d\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1683 yaffs_InodeToObject(inode)->objectId));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1684
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1685 /* Fail if a requested resize >= 2GB */
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1686 if (attr->ia_valid & ATTR_SIZE &&
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1687 (attr->ia_size >> 31))
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1688 error = -EINVAL;
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1689
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1690 if (error == 0)
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1691 error = inode_change_ok(inode, attr);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1692 if (error == 0) {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1693 int result;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1694 if (!error){
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1695 error = inode_setattr(inode, attr);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1696 T(YAFFS_TRACE_OS,("inode_setattr called\n"));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1697 if (attr->ia_valid & ATTR_SIZE)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1698 truncate_inode_pages(&inode->i_data,attr->ia_size);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1699 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1700 dev = yaffs_InodeToObject(inode)->myDev;
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1701 if (attr->ia_valid & ATTR_SIZE){
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1702 T(YAFFS_TRACE_OS,("resize to %d(%x)\n",(int)(attr->ia_size),(int)(attr->ia_size)));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1703 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1704 yaffs_GrossLock(dev);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1705 result = yaffs_SetAttributes(yaffs_InodeToObject(inode), attr);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1706 if(result == YAFFS_OK) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1707 error = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1708 } else {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1709 error = -EPERM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1710 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1711 yaffs_GrossUnlock(dev);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1712
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1713 }
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1714
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1715 T(YAFFS_TRACE_OS,
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1716 ("yaffs_setattr done returning %d\n",error));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1717
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1718 return error;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1719 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1720
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1721 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1722 static int yaffs_statfs(struct dentry dentry, struct kstatfs buf)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1723 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1724 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1725 struct super_block *sb = dentry->d_sb;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1726 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1727 static int yaffs_statfs(struct super_block sb, struct kstatfs buf)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1728 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1729 yaffs_Device *dev = yaffs_SuperToDevice(sb);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1730 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1731 static int yaffs_statfs(struct super_block sb, struct statfs buf)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1732 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1733 yaffs_Device *dev = yaffs_SuperToDevice(sb);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1734 #endif
15 f422dc67a33c Fix df size problem charles <charles> parents: 12 diff changeset	1735
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1736 T(YAFFS_TRACE_OS, ("yaffs_statfs\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1737
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1738 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1739
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1740 buf->f_type = YAFFS_MAGIC;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1741 buf->f_bsize = sb->s_blocksize;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1742 buf->f_namelen = 255;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1743
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1744 if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1745 /* Do this if chunk size is not a power of 2 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1746
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1747 uint64_t bytesInDev;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1748 uint64_t bytesFree;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1749
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1750 bytesInDev = ((uint64_t)((dev->param.endBlock - dev->param.startBlock + 1))) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1751 ((uint64_t)(dev->param.nChunksPerBlock * dev->nDataBytesPerChunk));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1752
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1753 do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1754 buf->f_blocks = bytesInDev;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1755
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1756 bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1757 ((uint64_t)(dev->nDataBytesPerChunk));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1758
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1759 do_div(bytesFree, sb->s_blocksize);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1760
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1761 buf->f_bfree = bytesFree;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1762
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1763 } else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1764
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1765 buf->f_blocks =
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1766 (dev->param.endBlock - dev->param.startBlock + 1) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1767 dev->param.nChunksPerBlock /
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1768 (sb->s_blocksize / dev->nDataBytesPerChunk);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1769 buf->f_bfree =
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1770 yaffs_GetNumberOfFreeChunks(dev) /
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1771 (sb->s_blocksize / dev->nDataBytesPerChunk);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1772 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1773 buf->f_blocks =
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1774 (dev->param.endBlock - dev->param.startBlock + 1) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1775 dev->param.nChunksPerBlock *
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1776 (dev->nDataBytesPerChunk / sb->s_blocksize);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1777
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1778 buf->f_bfree =
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1779 yaffs_GetNumberOfFreeChunks(dev) *
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1780 (dev->nDataBytesPerChunk / sb->s_blocksize);
15 f422dc67a33c Fix df size problem charles <charles> parents: 12 diff changeset	1781 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1782
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1783 buf->f_files = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1784 buf->f_ffree = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1785 buf->f_bavail = buf->f_bfree;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1786
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1787 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1788 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1789 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1790
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1791
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1792
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1793 static void yaffs_FlushInodes(struct super_block *sb)
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1794 {
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1795 struct inode *iptr;
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1796 yaffs_Object *obj;
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1797
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1798 list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1799 obj = yaffs_InodeToObject(iptr);
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1800 if(obj){
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1801 T(YAFFS_TRACE_OS, ("flushing obj %d\n",obj->objectId));
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1802 yaffs_FlushFile(obj,1,0);
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1803 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1804 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1805 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1806
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1807
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1808 static void yaffs_FlushSuperBlock(struct super_block *sb, int do_checkpoint)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1809 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1810 yaffs_Device *dev = yaffs_SuperToDevice(sb);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1811 if(!dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1812 return;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1813
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1814 yaffs_FlushInodes(sb);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1815 yaffs_UpdateDirtyDirectories(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1816 yaffs_FlushEntireDeviceCache(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1817 if(do_checkpoint)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1818 yaffs_CheckpointSave(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1819 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1820
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1821 static int yaffs_do_sync_fs(struct super_block *sb, int do_checkpoint)
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1822 {
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1823
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1824 yaffs_Device *dev = yaffs_SuperToDevice(sb);
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1825 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC,
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1826 ("yaffs_do_sync_fs: %s %s\n",
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1827 sb->s_dirt ? "dirty" : "clean",
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1828 do_checkpoint ? "with checkpoint" : "no checkpoint"));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1829
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1830 if (sb->s_dirt) {
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1831 yaffs_GrossLock(dev);
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1832 yaffs_FlushSuperBlock(sb,do_checkpoint);
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1833 yaffs_GrossUnlock(dev);
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1834
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1835 sb->s_dirt = 0;
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1836 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1837 return 0;
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1838 }
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1839
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1840 /*
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1841 * yaffs background thread functions .
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1842 * yaffs_BackgroundThread() the thread function
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1843 * yaffs_BackgroundStart() launches the background thread.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1844 * yaffs_BackgroundStop() cleans up the background thread.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1845 *
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1846 * NB:
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1847 * The thread should only run after the yaffs is initialised
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1848 * The thread should be stopped before yaffs is unmounted.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1849 * The thread should not do any writing while the fs is in read only.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1850 */
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1851
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1852 #ifdef YAFFS_COMPILE_BACKGROUND
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1853 static int yaffs_BackgroundThread(void *data)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1854 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1855 yaffs_Device dev = (yaffs_Device )data;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1856 struct yaffs_LinuxContext *context = yaffs_DeviceToContext(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1857
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1858 T(YAFFS_TRACE_BACKGROUND,
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1859 ("yaffs_background starting for dev %p\n",
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1860 (void *)dev));
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1861
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1862 while(context->bgRunning){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1863 T(YAFFS_TRACE_BACKGROUND,
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1864 ("yaffs_background\n"));
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1865
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1866 if(kthread_should_stop())
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1867 break;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1868 yaffs_GrossLock(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1869 yaffs_UpdateDirtyDirectories(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1870 yaffs_GrossUnlock(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1871 msleep(500);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1872 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1873 return 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1874 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1875
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1876 static int yaffs_BackgroundStart(yaffs_Device *dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1877 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1878 int retval = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1879
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1880 struct yaffs_LinuxContext *context = yaffs_DeviceToContext(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1881
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1882 context->bgRunning = 1;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1883
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1884 context->bgThread = kthread_run(yaffs_BackgroundThread,(void *)dev,"yaffs_%x",(unsigned)dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1885
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1886 if(IS_ERR(context->bgThread)){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1887 retval = PTR_ERR(context->bgThread);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1888 context->bgThread = NULL;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1889 context->bgRunning = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1890 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1891 return retval;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1892 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1893
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1894 static void yaffs_BackgroundStop(yaffs_Device *dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1895 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1896 struct yaffs_LinuxContext *ctxt = yaffs_DeviceToContext(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1897
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1898 ctxt->bgRunning = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1899
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1900 if( ctxt->bgThread){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1901 kthread_stop(ctxt->bgThread);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1902 ctxt->bgThread = NULL;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1903 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1904 }
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1905 #else
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1906 static int yaffs_BackgroundThread(void *data)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1907 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1908 return 0;
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1909 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1910
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1911 static int yaffs_BackgroundStart(yaffs_Device *dev)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1912 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1913 return 0;
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1914 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1915
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1916 static void yaffs_BackgroundStop(yaffs_Device *dev)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1917 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1918 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1919 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	1920
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1921
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1922 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1923 static void yaffs_write_super(struct super_block *sb)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1924 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1925 static int yaffs_write_super(struct super_block *sb)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1926 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1927 {
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1928
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	1929 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC, ("yaffs_write_super\n"));
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1930 yaffs_do_sync_fs(sb, yaffs_auto_checkpoint >= 2);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1931
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1932 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1933 return 0;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1934 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1935 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1936
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1937
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1938 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1939 static int yaffs_sync_fs(struct super_block *sb, int wait)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1940 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1941 static int yaffs_sync_fs(struct super_block *sb)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1942 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1943 {
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	1944 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC, ("yaffs_sync_fs\n"));
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1945
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1946 yaffs_do_sync_fs(sb,yaffs_auto_checkpoint >= 1);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1947
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1948 return 0;
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1949 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1950
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1951 #ifdef YAFFS_USE_OWN_IGET
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1952
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1953 static struct inode yaffs_iget(struct super_block sb, unsigned long ino)
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1954 {
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1955 struct inode *inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1956 yaffs_Object *obj;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1957 yaffs_Device *dev = yaffs_SuperToDevice(sb);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1958
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1959 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1960 ("yaffs_iget for %lu\n", ino));
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1961
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1962 inode = iget_locked(sb, ino);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1963 if (!inode)
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1964 return ERR_PTR(-ENOMEM);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1965 if (!(inode->i_state & I_NEW))
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1966 return inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1967
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1968 /* NB This is called as a side effect of other functions, but
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1969 * we had to release the lock to prevent deadlocks, so
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1970 * need to lock again.
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1971 */
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1972
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1973 yaffs_GrossLock(dev);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1974
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1975 obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1976
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1977 yaffs_FillInodeFromObject(inode, obj);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1978
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1979 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1980
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1981 unlock_new_inode(inode);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1982 return inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1983 }
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1984
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1985 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1986
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1987 static void yaffs_read_inode(struct inode *inode)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1988 {
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1989 /* NB This is called as a side effect of other functions, but
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1990 * we had to release the lock to prevent deadlocks, so
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1991 * need to lock again.
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1992 */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1993
0113df80498c lindent marty <marty> parents: 70 diff changeset	1994 yaffs_Object *obj;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1995 yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1996
0113df80498c lindent marty <marty> parents: 70 diff changeset	1997 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1998 ("yaffs_read_inode for %d\n", (int)inode->i_ino));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1999
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2000 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2001
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2002 obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2003
0113df80498c lindent marty <marty> parents: 70 diff changeset	2004 yaffs_FillInodeFromObject(inode, obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2005
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2006 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2007 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2008
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2009 #endif
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2010
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2011 static YLIST_HEAD(yaffs_context_list);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2012 struct semaphore yaffs_context_lock;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2013
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2014 #if 0 /* not used */
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2015 static int yaffs_remount_fs(struct super_block sb, int flags, char *data)
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2016 {
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2017 yaffs_Device *dev = yaffs_SuperToDevice(sb);
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2018
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2019 if (*flags & MS_RDONLY) {
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2020 struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2021
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2022 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2023 ("yaffs_remount_fs: %s: RO\n", dev->name));
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2024
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2025 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2026
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2027 yaffs_FlushSuperBlock(sb,1);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2028
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2029 if (mtd->sync)
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2030 mtd->sync(mtd);
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2031
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2032 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2033 } else {
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2034 T(YAFFS_TRACE_OS,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2035 ("yaffs_remount_fs: %s: RW\n", dev->name));
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2036 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2037
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2038 return 0;
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2039 }
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	2040 #endif
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2041
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2042 static void yaffs_put_super(struct super_block *sb)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2043 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2044 yaffs_Device *dev = yaffs_SuperToDevice(sb);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2045
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2046 T(YAFFS_TRACE_OS, ("yaffs_put_super\n"));
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2047
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2048 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2049
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2050 yaffs_FlushSuperBlock(sb,1);
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2051
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2052 if (yaffs_DeviceToContext(dev)->putSuperFunc)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2053 yaffs_DeviceToContext(dev)->putSuperFunc(sb);
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2054
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2055 yaffs_BackgroundStop(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2056
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2057 yaffs_Deinitialise(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2058
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2059 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2060
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2061 down(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2062 ylist_del_init(&(yaffs_DeviceToContext(dev)->contextList));
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2063 up(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2064
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2065 if (yaffs_DeviceToContext(dev)->spareBuffer) {
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2066 YFREE(yaffs_DeviceToContext(dev)->spareBuffer);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2067 yaffs_DeviceToContext(dev)->spareBuffer = NULL;
124 95d2677ebc15 Fix unmount spare buffer leak charles <charles> parents: 123 diff changeset	2068 }
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2069
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2070 kfree(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2071 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2072
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2073
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2074 static void yaffs_MTDPutSuper(struct super_block *sb)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2075 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2076 struct mtd_info *mtd = yaffs_DeviceToContext(yaffs_SuperToDevice(sb))->mtd;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2077
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2078 if (mtd->sync)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2079 mtd->sync(mtd);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2080
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2081 put_mtd_device(mtd);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2082 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2083
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2084
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2085 static void yaffs_MarkSuperBlockDirty(yaffs_Device *dev)
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2086 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2087 struct super_block *sb = yaffs_DeviceToContext(dev)->superBlock;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2088
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2089 T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2090 if (sb)
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2091 sb->s_dirt = 1;
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2092 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2093
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2094 typedef struct {
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2095 int inband_tags;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2096 int skip_checkpoint_read;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2097 int skip_checkpoint_write;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2098 int no_cache;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2099 int tags_ecc_on;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2100 int tags_ecc_overridden;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2101 int lazy_loading_enabled;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2102 int lazy_loading_overridden;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2103 int empty_lost_and_found;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2104 int empty_lost_and_found_overridden;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2105 } yaffs_options;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2106
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2107 #define MAX_OPT_LEN 30
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2108 static int yaffs_parse_options(yaffs_options options, const char options_str)
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2109 {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2110 char cur_opt[MAX_OPT_LEN + 1];
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2111 int p;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2112 int error = 0;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2113
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2114 /* Parse through the options which is a comma seperated list */
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2115
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2116 while (options_str && *options_str && !error) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2117 memset(cur_opt, 0, MAX_OPT_LEN + 1);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2118 p = 0;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2119
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2120 while(*options_str == ',')
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2121 options_str++;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2122
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2123 while (options_str && options_str != ',') {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2124 if (p < MAX_OPT_LEN) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2125 cur_opt[p] = *options_str;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2126 p++;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2127 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2128 options_str++;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2129 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2130
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2131 if (!strcmp(cur_opt, "inband-tags"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2132 options->inband_tags = 1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2133 else if (!strcmp(cur_opt, "tags-ecc-off")){
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2134 options->tags_ecc_on = 0;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2135 options->tags_ecc_overridden=1;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2136 } else if (!strcmp(cur_opt, "tags-ecc-on")){
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2137 options->tags_ecc_on = 1;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2138 options->tags_ecc_overridden = 1;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2139 } else if (!strcmp(cur_opt, "lazy-loading-off")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2140 options->lazy_loading_enabled = 0;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2141 options->lazy_loading_overridden=1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2142 } else if (!strcmp(cur_opt, "lazy-loading-on")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2143 options->lazy_loading_enabled = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2144 options->lazy_loading_overridden = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2145 } else if (!strcmp(cur_opt, "empty-lost-and-found-off")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2146 options->empty_lost_and_found = 0;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2147 options->empty_lost_and_found_overridden=1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2148 } else if (!strcmp(cur_opt, "empty-lost-and-found-on")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2149 options->empty_lost_and_found = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2150 options->empty_lost_and_found_overridden=1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2151 } else if (!strcmp(cur_opt, "no-cache"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2152 options->no_cache = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2153 else if (!strcmp(cur_opt, "no-checkpoint-read"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2154 options->skip_checkpoint_read = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2155 else if (!strcmp(cur_opt, "no-checkpoint-write"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2156 options->skip_checkpoint_write = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2157 else if (!strcmp(cur_opt, "no-checkpoint")) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2158 options->skip_checkpoint_read = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2159 options->skip_checkpoint_write = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2160 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2161 printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2162 cur_opt);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2163 error = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2164 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2165 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2166
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2167 return error;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2168 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2169
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2170 static struct super_block *yaffs_internal_read_super(int yaffsVersion,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2171 struct super_block *sb,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2172 void *data, int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2173 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2174 int nBlocks;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2175 struct inode *inode = NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2176 struct dentry *root;
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2177 yaffs_Device *dev = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2178 char devname_buf[BDEVNAME_SIZE + 1];
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2179 struct mtd_info *mtd;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2180 int err;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2181 char data_str = (char )data;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2182 struct yaffs_LinuxContext *context = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2183 yaffs_DeviceParam *param;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2184
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2185 yaffs_options options;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2186
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2187 sb->s_magic = YAFFS_MAGIC;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2188 sb->s_op = &yaffs_super_ops;
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2189 sb->s_flags \|= MS_NOATIME;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2190
0113df80498c lindent marty <marty> parents: 70 diff changeset	2191 if (!sb)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2192 printk(KERN_INFO "yaffs: sb is NULL\n");
0113df80498c lindent marty <marty> parents: 70 diff changeset	2193 else if (!sb->s_dev)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2194 printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
0113df80498c lindent marty <marty> parents: 70 diff changeset	2195 else if (!yaffs_devname(sb, devname_buf))
0113df80498c lindent marty <marty> parents: 70 diff changeset	2196 printk(KERN_INFO "yaffs: devname is NULL\n");
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2197 else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2198 printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2199 sb->s_dev,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2200 yaffs_devname(sb, devname_buf));
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2201
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2202 if (!data_str)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2203 data_str = "";
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2204
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2205 printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2206
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2207 memset(&options, 0, sizeof(options));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2208
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2209 if (yaffs_parse_options(&options, data_str)) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2210 /* Option parsing failed */
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2211 return NULL;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2212 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2213
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2214
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2215 sb->s_blocksize = PAGE_CACHE_SIZE;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2216 sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2217 T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2218 T(YAFFS_TRACE_OS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2219 ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2220
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2221 #ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2222 T(YAFFS_TRACE_OS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2223 ("yaffs: Write verification disabled. All guarantees "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2224 "null and void\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2225 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2226
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2227 T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2228 "\"%s\"\n",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2229 MAJOR(sb->s_dev), MINOR(sb->s_dev),
0113df80498c lindent marty <marty> parents: 70 diff changeset	2230 yaffs_devname(sb, devname_buf)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2231
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2232 /* Check it's an mtd device..... */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2233 if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2234 return NULL; /* This isn't an mtd device */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2235
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2236 /* Get the device */
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2237 mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2238 if (!mtd) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2239 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2240 ("yaffs: MTD device #%u doesn't appear to exist\n",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2241 MINOR(sb->s_dev)));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2242 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2243 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2244 /* Check it's NAND */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2245 if (mtd->type != MTD_NANDFLASH) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2246 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2247 ("yaffs: MTD device is not NAND it's type %d\n", mtd->type));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2248 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2249 }
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2250
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2251 T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2252 T(YAFFS_TRACE_OS, (" read %p\n", mtd->read));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2253 T(YAFFS_TRACE_OS, (" write %p\n", mtd->write));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2254 T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2255 T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2256 T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2257 T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad));
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2258 T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2259 T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2260 T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2261 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2262 T(YAFFS_TRACE_OS, (" size %u\n", mtd->size));
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2263 #else
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2264 T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size));
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2265 #endif
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2266
109 b9876f8c4b48 Fix conditional charles <charles> parents: 108 diff changeset	2267 #ifdef CONFIG_YAFFS_AUTO_YAFFS2
108 4a8113f1c36b Add yaffs2 autoselection charles <charles> parents: 106 diff changeset	2268
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2269 if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) {
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2270 T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n"));
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2271 yaffsVersion = 2;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2272 }
b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2273
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	2274 /* Added NCB 26/5/2006 for completeness */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2275 if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2276 T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n"));
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2277 yaffsVersion = 1;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2278 }
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	2279
108 4a8113f1c36b Add yaffs2 autoselection charles <charles> parents: 106 diff changeset	2280 #endif
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2281
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2282 if (yaffsVersion == 2) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2283 /* Check for version 2 style functions */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2284 if (!mtd->erase \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2285 !mtd->block_isbad \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2286 !mtd->block_markbad \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2287 !mtd->read \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2288 !mtd->write \|\|
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2289 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2290 !mtd->read_oob \|\| !mtd->write_oob) {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2291 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2292 !mtd->write_ecc \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2293 !mtd->read_ecc \|\| !mtd->read_oob \|\| !mtd->write_oob) {
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2294 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2295 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2296 ("yaffs: MTD device does not support required "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2297 "functions\n"));;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2298 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2299 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2300
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2301 if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE \|\|
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2302 mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2303 !options.inband_tags) {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2304 T(YAFFS_TRACE_ALWAYS,
126 2e7fd6d40037 Fix a couple of mistakes in TRACE/Error messages. Update copyright date. wookey <wookey> parents: 124 diff changeset	2305 ("yaffs: MTD device does not have the "
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2306 "right page sizes\n"));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2307 return NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2308 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2309 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2310 /* Check for V1 style functions */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2311 if (!mtd->erase \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2312 !mtd->read \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2313 !mtd->write \|\|
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2314 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2315 !mtd->read_oob \|\| !mtd->write_oob) {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2316 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2317 !mtd->write_ecc \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2318 !mtd->read_ecc \|\| !mtd->read_oob \|\| !mtd->write_oob) {
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2319 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2320 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2321 ("yaffs: MTD device does not support required "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2322 "functions\n"));;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2323 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2324 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2325
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2326 if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK \|\|
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2327 mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2328 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2329 ("yaffs: MTD device does not support have the "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2330 "right page sizes\n"));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2331 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2332 }
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2333 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2334
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2335 /* OK, so if we got here, we have an MTD that's NAND and looks
0113df80498c lindent marty <marty> parents: 70 diff changeset	2336 * like it has the right capabilities
0113df80498c lindent marty <marty> parents: 70 diff changeset	2337 * Set the yaffs_Device up for mtd
0113df80498c lindent marty <marty> parents: 70 diff changeset	2338 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2339
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2340 dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2341 context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2342
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2343 if(!dev \|\| !context ){
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2344 if(dev)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2345 kfree(dev);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2346 if(context)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2347 kfree(context);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2348 dev = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2349 context = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2350 }
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2351
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2352 if (!dev) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2353 /* Deep shit could not allocate device structure */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2354 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2355 ("yaffs_read_super: Failed trying to allocate "
0113df80498c lindent marty <marty> parents: 70 diff changeset	2356 "yaffs_Device. \n"));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2357 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2358 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2359 memset(dev, 0, sizeof(yaffs_Device));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2360 param = &(dev->param);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2361
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2362 memset(context,0,sizeof(struct yaffs_LinuxContext));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2363 dev->context = context;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2364 YINIT_LIST_HEAD(&(context->contextList));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2365 context->dev = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2366 context->superBlock = sb;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2367
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2368
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2369
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2370 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2371 sb->s_fs_info = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2372 #else
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2373 sb->u.generic_sbp = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2374 #endif
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2375
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2376 yaffs_DeviceToContext(dev)->mtd = mtd;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2377 param->name = mtd->name;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2378
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2379 /* Set up the memory size parameters.... */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2380
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2381 nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2382
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2383 param->startBlock = 0;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2384 param->endBlock = nBlocks - 1;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2385 param->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2386 param->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2387 param->nReservedBlocks = 5;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2388 param->nShortOpCaches = (options.no_cache) ? 0 : 10;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2389 param->inbandTags = options.inband_tags;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2390
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2391 #ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2392 param->disableLazyLoad = 1;
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2393 #endif
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2394 if(options.lazy_loading_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2395 param->disableLazyLoad = !options.lazy_loading_enabled;
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2396
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2397 #ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2398 param->noTagsECC = 1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2399 #endif
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2400
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2401 #ifdef CONFIG_YAFFS_DISABLE_BACKGROUND
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2402 #else
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2403 param->deferDirectoryUpdate = 1;
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2404 #endif
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2405
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2406 if(options.tags_ecc_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2407 param->noTagsECC = !options.tags_ecc_on;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2408
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2409 #ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
361 77453ad2ede7 Fix parameter handling charles <charles> parents: 356 diff changeset	2410 param->emptyLostAndFound = 1;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2411 #endif
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2412
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2413 #ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2414 param->refreshPeriod = 0;
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2415 #else
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2416 param->refreshPeriod = 10000;
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2417 #endif
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2418
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2419 if(options.empty_lost_and_found_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2420 param->emptyLostAndFound = options.empty_lost_and_found;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2421
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2422 /* ... and the functions. */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2423 if (yaffsVersion == 2) {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2424 param->writeChunkWithTagsToNAND =
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2425 nandmtd2_WriteChunkWithTagsToNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2426 param->readChunkWithTagsFromNAND =
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2427 nandmtd2_ReadChunkWithTagsFromNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2428 param->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2429 param->queryNANDBlock = nandmtd2_QueryNANDBlock;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2430 yaffs_DeviceToContext(dev)->spareBuffer = YMALLOC(mtd->oobsize);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2431 param->isYaffs2 = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2432 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2433 param->totalBytesPerChunk = mtd->writesize;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2434 param->nChunksPerBlock = mtd->erasesize / mtd->writesize;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2435 #else
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2436 param->totalBytesPerChunk = mtd->oobblock;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2437 param->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2438 #endif
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2439 nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
131 99e93a234aba Fix some checkpoint stuff, add qsort charles <charles> parents: 129 diff changeset	2440
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2441 param->startBlock = 0;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2442 param->endBlock = nBlocks - 1;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2443 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2444 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2445 /* use the MTD interface in yaffs_mtdif1.c */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2446 param->writeChunkWithTagsToNAND =
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2447 nandmtd1_WriteChunkWithTagsToNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2448 param->readChunkWithTagsFromNAND =
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2449 nandmtd1_ReadChunkWithTagsFromNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2450 param->markNANDBlockBad = nandmtd1_MarkNANDBlockBad;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2451 param->queryNANDBlock = nandmtd1_QueryNANDBlock;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2452 #else
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2453 param->writeChunkToNAND = nandmtd_WriteChunkToNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2454 param->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2455 #endif
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2456 param->isYaffs2 = 0;
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2457 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2458 /* ... and common functions */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2459 param->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2460 param->initialiseNAND = nandmtd_InitialiseNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2461
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2462 yaffs_DeviceToContext(dev)->putSuperFunc = yaffs_MTDPutSuper;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2463
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2464 param->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2465
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2466 yaffs_DeviceToContext(dev)->superBlock= sb;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2467
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2468
61 49f66fca0b09 newconfig: use YAFFS_DOES_ECC instead of USE_NANDECC luc <luc> parents: 59 diff changeset	2469 #ifndef CONFIG_YAFFS_DOES_ECC
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2470 param->useNANDECC = 1;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2471 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2472
104 8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2473 #ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2474 param->wideTnodesDisabled = 1;
104 8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2475 #endif
8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2476
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2477 param->skipCheckpointRead = options.skip_checkpoint_read;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2478 param->skipCheckpointWrite = options.skip_checkpoint_write;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2479
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2480 /* we assume this is protected by lock_kernel() in mount/umount */
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2481 down(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2482 ylist_add_tail(&(yaffs_DeviceToContext(dev)->contextList), &yaffs_context_list);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2483 up(&yaffs_context_lock);
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2484
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	2485 /* Directory search handling...*/
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2486 YINIT_LIST_HEAD(&(yaffs_DeviceToContext(dev)->searchContexts));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2487 param->removeObjectCallback = yaffs_RemoveObjectCallback;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2488
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2489 init_MUTEX(&(yaffs_DeviceToContext(dev)->grossLock));
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2490
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2491 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2492
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2493 err = yaffs_GutsInitialise(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2494
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2495 T(YAFFS_TRACE_OS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2496 ("yaffs_read_super: guts initialised %s\n",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2497 (err == YAFFS_OK) ? "OK" : "FAILED"));
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2498
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2499 if(err == YAFFS_OK)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2500 yaffs_BackgroundStart(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2501
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2502 if(!context->bgThread)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2503 param->deferDirectoryUpdate = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2504
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2505
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2506 /* Release lock before yaffs_get_inode() */
5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2507 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2508
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2509 /* Create root inode */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2510 if (err == YAFFS_OK)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2511 inode = yaffs_get_inode(sb, S_IFDIR \| 0755, 0,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2512 yaffs_Root(dev));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2513
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2514 if (!inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2515 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2516
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2517 inode->i_op = &yaffs_dir_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2518 inode->i_fop = &yaffs_dir_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2519
0113df80498c lindent marty <marty> parents: 70 diff changeset	2520 T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2521
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2522 root = d_alloc_root(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2523
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2524 T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2525
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2526 if (!root) {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2527 iput(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2528 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2529 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2530 sb->s_root = root;
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2531 sb->s_dirt = !dev->isCheckpointed;
7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2532 T(YAFFS_TRACE_ALWAYS,
7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2533 ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2534
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2535 T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2536 return sb;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2537 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2538
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2539
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2540 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2541 static int yaffs_internal_read_super_mtd(struct super_block sb, void data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2542 int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2543 {
95 43bc1e9bab9d Patch from Sergey Kubushyn [ksi@koi8.net] marty <marty> parents: 94 diff changeset	2544 return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2545 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2546
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2547 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2548 static int yaffs_read_super(struct file_system_type *fs,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2549 int flags, const char *dev_name,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2550 void data, struct vfsmount mnt)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2551 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2552
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2553 return get_sb_bdev(fs, flags, dev_name, data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2554 yaffs_internal_read_super_mtd, mnt);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2555 }
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2556 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2557 static struct super_block yaffs_read_super(struct file_system_type fs,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2558 int flags, const char *dev_name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2559 void *data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2560 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2561
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2562 return get_sb_bdev(fs, flags, dev_name, data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2563 yaffs_internal_read_super_mtd);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2564 }
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2565 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2566
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2567 static struct file_system_type yaffs_fs_type = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2568 .owner = THIS_MODULE,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2569 .name = "yaffs",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2570 .get_sb = yaffs_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2571 .kill_sb = kill_block_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2572 .fs_flags = FS_REQUIRES_DEV,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2573 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2574 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2575 static struct super_block yaffs_read_super(struct super_block sb, void *data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2576 int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2577 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2578 return yaffs_internal_read_super(1, sb, data, silent);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2579 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2580
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2581 static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2582 FS_REQUIRES_DEV);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2583 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2584
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2585
49 05fb5e11130f Remove CONFIG_YAFFS_USE_CHUNK_SIZE marty <marty> parents: 45 diff changeset	2586 #ifdef CONFIG_YAFFS_YAFFS2
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2587
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2588 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2589 static int yaffs2_internal_read_super_mtd(struct super_block sb, void data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2590 int silent)
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2591 {
95 43bc1e9bab9d Patch from Sergey Kubushyn [ksi@koi8.net] marty <marty> parents: 94 diff changeset	2592 return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2593 }
e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2594
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2595 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2596 static int yaffs2_read_super(struct file_system_type *fs,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2597 int flags, const char dev_name, void data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2598 struct vfsmount *mnt)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2599 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2600 return get_sb_bdev(fs, flags, dev_name, data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2601 yaffs2_internal_read_super_mtd, mnt);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2602 }
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2603 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2604 static struct super_block yaffs2_read_super(struct file_system_type fs,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2605 int flags, const char *dev_name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2606 void *data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2607 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2608
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2609 return get_sb_bdev(fs, flags, dev_name, data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2610 yaffs2_internal_read_super_mtd);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2611 }
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2612 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2613
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2614 static struct file_system_type yaffs2_fs_type = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2615 .owner = THIS_MODULE,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2616 .name = "yaffs2",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2617 .get_sb = yaffs2_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2618 .kill_sb = kill_block_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2619 .fs_flags = FS_REQUIRES_DEV,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2620 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2621 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2622 static struct super_block yaffs2_read_super(struct super_block sb,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2623 void *data, int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2624 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2625 return yaffs_internal_read_super(2, sb, data, silent);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2626 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2627
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2628 static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2629 FS_REQUIRES_DEV);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2630 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2631
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2632 #endif /* CONFIG_YAFFS_YAFFS2 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2633
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2634 static struct proc_dir_entry *my_proc_entry;
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2635 static struct proc_dir_entry *debug_proc_entry;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2636
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2637 static char yaffs_dump_dev_part0(char buf, yaffs_Device * dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2638 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2639 buf += sprintf(buf, "startBlock......... %d\n", dev->param.startBlock);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2640 buf += sprintf(buf, "endBlock........... %d\n", dev->param.endBlock);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2641 buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->param.totalBytesPerChunk);
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2642 buf += sprintf(buf, "useNANDECC......... %d\n", dev->param.useNANDECC);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2643 buf += sprintf(buf, "noTagsECC.......... %d\n", dev->param.noTagsECC);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2644 buf += sprintf(buf, "isYaffs2........... %d\n", dev->param.isYaffs2);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2645 buf += sprintf(buf, "inbandTags......... %d\n", dev->param.inbandTags);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2646 buf += sprintf(buf, "emptyLostAndFound.. %d\n", dev->param.emptyLostAndFound);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2647 buf += sprintf(buf, "disableLazyLoad.... %d\n", dev->param.disableLazyLoad);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2648 buf += sprintf(buf, "refreshPeriod...... %d\n", dev->param.refreshPeriod);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2649 buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->param.nShortOpCaches);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2650 buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->param.nReservedBlocks);
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2651
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2652 buf += sprintf(buf, "\n");
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2653
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2654 return buf;
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2655 }
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2656
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2657
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2658 static char yaffs_dump_dev_part1(char buf, yaffs_Device * dev)
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2659 {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2660 buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2661 buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2662 buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2663 buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2664 buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2665 buf += sprintf(buf, "\n");
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2666 buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2667 buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2668 buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2669 buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2670 buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2671 buf += sprintf(buf, "\n");
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2672 buf += sprintf(buf, "nPageWrites........ %u\n", dev->nPageWrites);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2673 buf += sprintf(buf, "nPageReads......... %u\n", dev->nPageReads);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2674 buf += sprintf(buf, "nBlockErasures..... %u\n", dev->nBlockErasures);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2675 buf += sprintf(buf, "nGCCopies.......... %u\n", dev->nGCCopies);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2676 buf += sprintf(buf, "garbageCollections. %u\n", dev->garbageCollections);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2677 buf += sprintf(buf, "passiveGCs......... %u\n", dev->passiveGarbageCollections);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2678 buf += sprintf(buf, "nRetriedWrites..... %u\n", dev->nRetriedWrites);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2679 buf += sprintf(buf, "nRetireBlocks...... %u\n", dev->nRetiredBlocks);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2680 buf += sprintf(buf, "eccFixed........... %u\n", dev->eccFixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2681 buf += sprintf(buf, "eccUnfixed......... %u\n", dev->eccUnfixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2682 buf += sprintf(buf, "tagsEccFixed....... %u\n", dev->tagsEccFixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2683 buf += sprintf(buf, "tagsEccUnfixed..... %u\n", dev->tagsEccUnfixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2684 buf += sprintf(buf, "cacheHits.......... %u\n", dev->cacheHits);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2685 buf += sprintf(buf, "nDeletedFiles...... %u\n", dev->nDeletedFiles);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2686 buf += sprintf(buf, "nUnlinkedFiles..... %u\n", dev->nUnlinkedFiles);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2687 buf += sprintf(buf, "refreshCount....... %u\n", dev->refreshCount);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2688 buf +=
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2689 sprintf(buf, "nBackgroudDeletions %u\n", dev->nBackgroundDeletions);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2690
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2691 return buf;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2692 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2693
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2694 static int yaffs_proc_read(char *page,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2695 char **start,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2696 off_t offset, int count, int eof, void data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2697 {
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2698 struct ylist_head *item;
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2699 char *buf = page;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2700 int step = offset;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2701 int n = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2702
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2703 /* Get proc_file_read() to step 'offset' by one on each sucessive call.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2704 * We use 'offset' (*ppos) to indicate where we are in devList.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2705 * This also assumes the user has posted a read buffer large
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2706 * enough to hold the complete output; but that's life in /proc.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2707 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2708
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2709 (int )start = 1;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2710
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2711 /* Print header first */
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2712 if (step == 0)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2713 buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__
0113df80498c lindent marty <marty> parents: 70 diff changeset	2714 "\n%s\n%s\n", yaffs_fs_c_version,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2715 yaffs_guts_c_version);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2716 else if (step == 1)
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2717 buf += sprintf(buf,"\n");
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2718 else {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2719 step-=2;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2720
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2721 down(&yaffs_context_lock);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2722
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2723 /* Locate and print the Nth entry. Order N-squared but N is small. */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2724 ylist_for_each(item, &yaffs_context_list) {
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2725 struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2726 yaffs_Device *dev = dc->dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2727
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2728 if (n < (step & ~1)) {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2729 n+=2;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2730 continue;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2731 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2732 if((step & 1)==0){
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2733 buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2734 buf = yaffs_dump_dev_part0(buf, dev);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2735 } else
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2736 buf = yaffs_dump_dev_part1(buf, dev);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2737
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2738 break;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2739 }
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2740 up(&yaffs_context_lock);
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2741 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2742
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2743 return buf - page < count ? buf - page : count;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2744 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2745
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2746 static int yaffs_debug_proc_read(char *page,
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2747 char **start,
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2748 off_t offset, int count, int eof, void data)
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2749 {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2750 struct ylist_head *item;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2751 char *buf = page;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2752 int step = offset;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2753 int n = 0;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2754
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2755 down(&yaffs_context_lock);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2756
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2757 /* Locate and print the Nth entry. Order N-squared but N is small. */
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2758 ylist_for_each(item, &yaffs_context_list) {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2759 struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2760 yaffs_Device *dev = dc->dev;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2761
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2762 buf += sprintf(buf,"%d %u %u\n", n, dev->nFreeChunks, dev->nErasedBlocks * dev->param.nChunksPerBlock);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2763 }
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2764 up(&yaffs_context_lock);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2765
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2766
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2767 return buf - page < count ? buf - page : count;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2768 }
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2769
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2770 /**
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2771 * Set the verbosity of the warnings and error messages.
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2772 *
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2773 * Note that the names can only be a..z or _ with the current code.
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2774 */
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2775
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2776 static struct {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2777 char *mask_name;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2778 unsigned mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2779 } mask_flags[] = {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2780 {"allocate", YAFFS_TRACE_ALLOCATE},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2781 {"always", YAFFS_TRACE_ALWAYS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2782 {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2783 {"buffers", YAFFS_TRACE_BUFFERS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2784 {"bug", YAFFS_TRACE_BUG},
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2785 {"checkpt", YAFFS_TRACE_CHECKPOINT},
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2786 {"deletion", YAFFS_TRACE_DELETION},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2787 {"erase", YAFFS_TRACE_ERASE},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2788 {"error", YAFFS_TRACE_ERROR},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2789 {"gc_detail", YAFFS_TRACE_GC_DETAIL},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2790 {"gc", YAFFS_TRACE_GC},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2791 {"mtd", YAFFS_TRACE_MTD},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2792 {"nandaccess", YAFFS_TRACE_NANDACCESS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2793 {"os", YAFFS_TRACE_OS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2794 {"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2795 {"scan", YAFFS_TRACE_SCAN},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2796 {"tracing", YAFFS_TRACE_TRACING},
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	2797 {"sync", YAFFS_TRACE_SYNC},
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2798
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2799 {"background", YAFFS_TRACE_BACKGROUND},
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2800
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2801 {"verify", YAFFS_TRACE_VERIFY},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2802 {"verify_nand", YAFFS_TRACE_VERIFY_NAND},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2803 {"verify_full", YAFFS_TRACE_VERIFY_FULL},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2804 {"verify_all", YAFFS_TRACE_VERIFY_ALL},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2805
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2806 {"write", YAFFS_TRACE_WRITE},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2807 {"all", 0xffffffff},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2808 {"none", 0},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2809 {NULL, 0},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2810 };
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2811
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2812 #define MAX_MASK_NAME_LENGTH 40
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2813 static int yaffs_proc_write_trace_options(struct file file, const char buf,
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2814 unsigned long count, void *data)
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2815 {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2816 unsigned rg = 0, mask_bitfield;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2817 char *end;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2818 char *mask_name;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2819 const char *x;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2820 char substring[MAX_MASK_NAME_LENGTH + 1];
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2821 int i;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2822 int done = 0;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	2823 int add, len = 0;
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2824 int pos = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2825
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2826 rg = yaffs_traceMask;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2827
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2828 while (!done && (pos < count)) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2829 done = 1;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2830 while ((pos < count) && isspace(buf[pos]))
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2831 pos++;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2832
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2833 switch (buf[pos]) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2834 case '+':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2835 case '-':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2836 case '=':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2837 add = buf[pos];
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2838 pos++;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2839 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2840
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2841 default:
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2842 add = ' ';
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2843 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2844 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2845 mask_name = NULL;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2846
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2847 mask_bitfield = simple_strtoul(buf + pos, &end, 0);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2848
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2849 if (end > buf + pos) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2850 mask_name = "numeral";
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2851 len = end - (buf + pos);
188 62921764ba1b Fix infinite loop when parsing numeric trace flags written to /proc/yaffs. imcd <imcd> parents: 179 diff changeset	2852 pos += len;
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2853 done = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2854 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2855 for (x = buf + pos, i = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2856 (x == '_' \|\| (x >= 'a' && *x <= 'z')) &&
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2857 i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2858 substring[i] = *x;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2859 substring[i] = '\0';
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2860
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2861 for (i = 0; mask_flags[i].mask_name != NULL; i++) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2862 if (strcmp(substring, mask_flags[i].mask_name) == 0) {
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2863 mask_name = mask_flags[i].mask_name;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2864 mask_bitfield = mask_flags[i].mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2865 done = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2866 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2867 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2868 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2869 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2870
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2871 if (mask_name != NULL) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2872 done = 0;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2873 switch (add) {
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2874 case '-':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2875 rg &= ~mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2876 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2877 case '+':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2878 rg \|= mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2879 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2880 case '=':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2881 rg = mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2882 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2883 default:
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2884 rg \|= mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2885 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2886 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2887 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2888 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2889
165 c2f9b707a39e Add Phils checkpoint configuration charles <charles> parents: 148 diff changeset	2890 yaffs_traceMask = rg \| YAFFS_TRACE_ALWAYS;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2891
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2892 printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2893
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2894 if (rg & YAFFS_TRACE_ALWAYS) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2895 for (i = 0; mask_flags[i].mask_name != NULL; i++) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2896 char flag;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2897 flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2898 printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2899 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2900 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2901
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2902 return count;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2903 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2904
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2905
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2906 static int yaffs_proc_write(struct file file, const char buf,
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2907 unsigned long count, void *data)
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2908 {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2909 return yaffs_proc_write_trace_options(file, buf, count, data);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2910 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2911
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2912 /* Stuff to handle installation of file systems */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2913 struct file_system_to_install {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2914 struct file_system_type *fst;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2915 int installed;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2916 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2917
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2918 static struct file_system_to_install fs_to_install[] = {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2919 {&yaffs_fs_type, 0},
0113df80498c lindent marty <marty> parents: 70 diff changeset	2920 {&yaffs2_fs_type, 0},
0113df80498c lindent marty <marty> parents: 70 diff changeset	2921 {NULL, 0}
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2922 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2923
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2924 static int __init init_yaffs_fs(void)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2925 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2926 int error = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2927 struct file_system_to_install *fsinst;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2928
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2929 T(YAFFS_TRACE_ALWAYS,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2930 ("yaffs " __DATE__ " " __TIME__ " Installing. \n"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2931
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2932 init_MUTEX(&yaffs_context_lock);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2933
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2934 /* Install the proc_fs entries */
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2935 my_proc_entry = create_proc_entry("yaffs",
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2936 S_IRUGO \| S_IFREG,
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	2937 YPROC_ROOT);
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2938
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2939 if (my_proc_entry) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2940 my_proc_entry->write_proc = yaffs_proc_write;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2941 my_proc_entry->read_proc = yaffs_proc_read;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	2942 my_proc_entry->data = NULL;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2943 } else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2944 return -ENOMEM;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2945
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2946 debug_proc_entry = create_proc_entry("yaffs_debug",
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2947 S_IRUGO \| S_IFREG,
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2948 YPROC_ROOT);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2949
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2950 if (debug_proc_entry) {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2951 debug_proc_entry->write_proc = NULL;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2952 debug_proc_entry->read_proc = yaffs_debug_proc_read;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2953 debug_proc_entry->data = NULL;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2954 } else
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2955 return -ENOMEM;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2956
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2957 /* Now add the file system entries */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2958
0113df80498c lindent marty <marty> parents: 70 diff changeset	2959 fsinst = fs_to_install;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2960
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2961 while (fsinst->fst && !error) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2962 error = register_filesystem(fsinst->fst);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2963 if (!error)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2964 fsinst->installed = 1;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2965 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2966 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2967
0113df80498c lindent marty <marty> parents: 70 diff changeset	2968 /* Any errors? uninstall */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2969 if (error) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2970 fsinst = fs_to_install;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2971
0113df80498c lindent marty <marty> parents: 70 diff changeset	2972 while (fsinst->fst) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2973 if (fsinst->installed) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2974 unregister_filesystem(fsinst->fst);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2975 fsinst->installed = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2976 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2977 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2978 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2979 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2980
0113df80498c lindent marty <marty> parents: 70 diff changeset	2981 return error;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2982 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2983
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2984 static void __exit exit_yaffs_fs(void)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2985 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2986
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2987 struct file_system_to_install *fsinst;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2988
0113df80498c lindent marty <marty> parents: 70 diff changeset	2989 T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__
0113df80498c lindent marty <marty> parents: 70 diff changeset	2990 " removing. \n"));
0113df80498c lindent marty <marty> parents: 70 diff changeset	2991
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	2992 remove_proc_entry("yaffs", YPROC_ROOT);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2993
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2994 fsinst = fs_to_install;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2995
0113df80498c lindent marty <marty> parents: 70 diff changeset	2996 while (fsinst->fst) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2997 if (fsinst->installed) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2998 unregister_filesystem(fsinst->fst);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2999 fsinst->installed = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3000 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3001 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3002 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3003 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3004
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3005 module_init(init_yaffs_fs)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3006 module_exit(exit_yaffs_fs)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3007
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3008 MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
126 2e7fd6d40037 Fix a couple of mistakes in TRACE/Error messages. Update copyright date. wookey <wookey> parents: 124 diff changeset	3009 MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3010 MODULE_LICENSE("GPL");

Mercurial > yaffs-ecoscentric-gpl

annotate yaffs_fs.c @ 385:d76a2de52a82