Jan Kara e5a1a67df4 ext3: Fix data / filesystem corruption when write fails to copy data ...

commit 68eb3db08344286733adac48304d9fb7a0e53b27 upstream.

When ext3_write_begin fails after allocating some blocks or
generic_perform_write fails to copy data to write, we truncate blocks already
instantiated beyond i_size. Although these blocks were never inside i_size, we
have to truncate pagecache of these blocks so that corresponding buffers get
unmapped. Otherwise subsequent __block_prepare_write (called because we are
retrying the write) will find the buffers mapped, not call ->get_block, and
thus the page will be backed by already freed blocks leading to filesystem and
data corruption.

Reported-by: James Y Knight <foom@fuhm.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2009-12-18 13:44:18 -08:00

..

acl.c

helpers for acl caching + switch to those

2009-06-24 08:17:07 -04:00

acl.h

switch ext3 to inode->i_acl

2009-06-24 08:17:04 -04:00

balloc.c

ext3: remove ->write_super and stop maintaining ->s_dirt

2009-06-11 21:36:05 -04:00

bitmap.c

fs: mark nibblemap const

2007-10-17 08:42:47 -07:00

dir.c

ext3: Get rid of extenddisksize parameter of ext3_get_blocks_handle()

2009-07-15 21:30:46 +02:00

ext3_jbd.c

ext3: replace remaining __FUNCTION__ occurrences

2008-04-28 08:58:45 -07:00

file.c

Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-03 11:10:33 -07:00

fsync.c

ext3: fdatasync should skip metadata writeout when overwriting

2008-04-28 08:58:43 -07:00

hash.c

ext3: Add support for non-native signed/unsigned htree hash algorithms

2008-10-28 13:21:55 -04:00

ialloc.c

ext3: remove ->write_super and stop maintaining ->s_dirt

2009-06-11 21:36:05 -04:00

inode.c

ext3: Fix data / filesystem corruption when write fails to copy data

2009-12-18 13:44:18 -08:00

ioctl.c

ext3: remove the BKL in ext3/ioctl.c

2009-04-02 19:04:52 -07:00

Kconfig

ext3: Update Kconfig description of EXT3_DEFAULTS_TO_ORDERED

2009-08-24 16:48:32 +02:00

Makefile

[PATCH] ext3: uninline large functions

2006-12-07 08:39:35 -08:00

namei.c

Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-03 11:10:33 -07:00

namei.h

[PATCH] ext3: sparse fixes

2005-10-30 17:37:25 -08:00

resize.c

block: rename CONFIG_LBD to CONFIG_LBDAF

2009-06-19 08:08:50 +02:00

super.c

ext3: Improve error message that changing journaling mode on remount is not possible

2009-08-24 16:48:45 +02:00

symlink.c

[PATCH] mark struct inode_operations const 1

2007-02-12 09:48:46 -08:00

xattr_security.c

ext3: remove double definitions of xattr macros

2008-07-25 10:53:32 -07:00

xattr_trusted.c

ext3: remove double definitions of xattr macros

2008-07-25 10:53:32 -07:00

xattr_user.c

ext3: remove double definitions of xattr macros

2008-07-25 10:53:32 -07:00

xattr.c

ext3: remove ->write_super and stop maintaining ->s_dirt

2009-06-11 21:36:05 -04:00

xattr.h

make ext3_xattr_list() static

2008-04-28 08:58:44 -07:00