Hidehiro Kawai 5bf5683a33 ext4: add an option to control error handling on file data ... If the journal doesn't abort when it gets an IO error in file data blocks, the file data corruption will spread silently. Because most of applications and commands do buffered writes without fsync(), they don't notice the IO error. It's scary for mission critical systems. On the other hand, if the journal aborts whenever it gets an IO error in file data blocks, the system will easily become inoperable. So this patch introduces a filesystem option to determine whether it aborts the journal or just call printk() when it gets an IO error in file data. If you mount an ext4 fs with data_err=abort option, it aborts on file data write error. If you mount it with data_err=ignore, it doesn't abort, just call printk(). data_err=ignore is the default. Here is the corresponding patch of the ext3 version: http://kerneltrap.org/mailarchive/linux-kernel/2008/9/9/3239374 Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2008-10-10 22:12:43 -04:00
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configfs	docsrc: build Documentation/ sources	2008-08-12 16:07:30 -07:00
00-INDEX	Documentation: move rpc-cache.txt to filesystems/	2008-04-11 13:20:52 -06:00
9p.txt	9p: add virtio transport	2007-10-23 13:47:31 -05:00
Exporting	exportfs: update documentation	2007-10-22 08:13:21 -07:00
Locking	update Documentation/filesystems/Locking for 2.6.27 changes	2008-09-09 11:51:15 -07:00
adfs.txt	Fix typos in /Documentation : 'U-Z'	2006-11-30 04:58:40 +01:00
affs.txt	…
afs.txt	[AFS]: Update the AFS fs documentation.	2007-04-26 15:57:43 -07:00
automount-support.txt	VFS: Unexport do_kern_mount() and clean up simple_pin_fs()	2006-06-09 09:34:16 -04:00
befs.txt	Fix typos in Documentation/: 'Q'-'R'	2006-10-03 22:54:15 +02:00
bfs.txt	remove mention of CONFIG_KMOD from documentation	2008-07-22 19:24:29 +10:00
cifs.txt	…
coda.txt	…
cramfs.txt	…
dentry-locking.txt	…
directory-locking	Documentation: Fix up docs still talking about i_sem	2007-05-24 10:16:17 -07:00
dlmfs.txt	Fix typos in Documentation/: 'D'-'E'	2006-10-03 22:47:42 +02:00
dnotify.txt	Documentation: move dnotify.txt to filesystems/	2008-02-07 08:42:17 -08:00
ecryptfs.txt	eCryptfs: Move ecryptfs docs into Documentation/filesystems/	2007-07-17 10:23:08 -07:00
ext2.txt	Fix typos in Documentation/: 'N'-'P'	2006-10-03 22:52:05 +02:00
ext3.txt	documentation/ext3: grammar fixes	2007-10-20 02:38:36 +02:00
ext4.txt	ext4: add an option to control error handling on file data	2008-10-10 22:12:43 -04:00
fiemap.txt	vfs: vfs-level fiemap interface	2008-10-08 19:44:18 -04:00
files.txt	Documentation/filesystems/files.txt: remove rcuref_inc_lf() reverences	2007-10-20 01:47:49 +02:00
fuse.txt	[PATCH] fuse: fix typo	2006-12-30 10:56:45 -08:00
gfs2-glocks.txt	[GFS2] Glock documentation	2008-06-27 09:39:53 +01:00
gfs2.txt	[GFS2] Update documentation	2006-04-25 15:44:04 -04:00
hfs.txt	…
hfsplus.txt	Documentation: document HFSPlus	2007-07-31 15:39:38 -07:00
hpfs.txt	misc doc and kconfig typos	2007-05-09 08:58:15 +02:00
inotify.txt	[PATCH] inotify (5/5): update kernel documentation	2006-06-20 05:25:19 -04:00
isofs.txt	isofs: implement dmode option	2008-02-08 09:22:38 -08:00
jfs.txt	JFS: document uid, gid, and umask mount options in jfs.txt	2007-03-09 10:27:31 -06:00
locks.txt	Documentation: move locks.txt in filesystems/	2007-10-09 18:32:45 -04:00
mandatory-locking.txt	locks: add warning about mandatory locking races	2007-10-09 18:32:45 -04:00
ncpfs.txt	…
nfs-rdma.txt	nfs: rewrap NFS/RDMA documentation to 80 lines	2008-06-30 15:24:43 -04:00
nfsroot.txt	Documentation: move nfsroot.txt to filesystems/	2008-04-11 13:18:01 -06:00
ntfs.txt	NTFS: update homepage	2008-09-02 19:21:37 -07:00
ocfs2.txt	[PATCH 2/2] ocfs2: cluster aware flock()	2008-01-25 15:05:43 -08:00
omfs.txt	omfs: add filesystem documentation	2008-07-26 12:00:05 -07:00
porting	iget: remove iget() and the read_inode() super op as being obsolete	2008-02-07 08:42:29 -08:00
proc.txt	ext4: Use readahead when reading an inode from the inode table	2008-10-09 23:53:47 -04:00
quota.txt	quota: documentation for sending "below quota" messages via netlink and tiny doc update	2008-08-12 16:07:27 -07:00
ramfs-rootfs-initramfs.txt	Documentation: fix type error	2008-02-03 14:50:11 +02:00
relay.txt	relay: add buffer-only channels; useful for early logging	2008-07-26 12:00:04 -07:00
romfs.txt	…
rpc-cache.txt	Documentation: move rpc-cache.txt to filesystems/	2008-04-11 13:20:52 -06:00
seq_file.txt	Document seq_path_root()	2008-04-25 11:56:37 -06:00
sharedsubtree.txt	Documentation: move sharedsubtrees.txt to filesystems/	2008-02-07 08:42:17 -08:00
smbfs.txt	…
spufs.txt	Fix typos in /Documentation : 'U-Z'	2006-11-30 04:58:40 +01:00
sysfs-pci.txt	x86: PAT export resource_wc in pci sysfs	2008-06-12 10:12:42 +02:00
sysfs.txt	sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor	2008-07-21 21:54:40 -07:00
sysv-fs.txt	[PATCH] fs/sysv/: doc cleanup	2006-12-07 08:39:44 -08:00
tmpfs.txt	mempolicy: update NUMA memory policy documentation	2008-04-28 08:58:19 -07:00
ubifs.txt	Documentation: fix typo in ubifs.txt	2008-08-13 11:14:54 +03:00
udf.txt	[PATCH] Update udf documentation to reflect current state of read/write support	2006-11-16 11:43:38 -08:00
ufs.txt	[PATCH] ufs2 write: mount as rw	2007-02-12 09:48:40 -08:00
vfat.txt	UTC timestamp option for FAT filesystems fix	2008-07-25 10:53:34 -07:00
vfs.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
xfs.txt	[XFS] Update XFS documentation for noikeep/ikeep.	2008-04-18 12:18:42 +10:00
xip.txt	misc doc and kconfig typos	2007-05-09 08:58:15 +02:00