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c8585c6fca
linux/fs/ext4
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Daeho Jeong c8585c6fca ext4: fix races between changing inode journal mode and ext4_writepages 
In ext4, there is a race condition between changing inode journal mode
and ext4_writepages(). While ext4_writepages() is executed on a
non-journalled mode inode, the inode's journal mode could be enabled
by ioctl() and then, some pages dirtied after switching the journal
mode will be still exposed to ext4_writepages() in non-journaled mode.
To resolve this problem, we use fs-wide per-cpu rw semaphore by Jan
Kara's suggestion because we don't want to waste ext4_inode_info's
space for this extra rare case.

Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
2016-04-25 23:22:35 -04:00
..
acl.c
acl.h
balloc.c ext4: fix scheduling in atomic on group checksum failure 2016-02-11 23:15:12 -05:00
bitmap.c
block_validity.c ext4: call out CRC and corruption errors with specific error codes 2015-10-17 16:16:04 -04:00
crypto_fname.c ext4: Use skcipher 2016-01-27 20:35:55 +08:00
crypto_key.c ext4: Use skcipher 2016-01-27 20:35:55 +08:00
crypto_policy.c ext4 crypto: replace some BUG_ON()'s with error checks 2015-10-03 10:49:27 -04:00
crypto.c ext4/fscrypto: avoid RCU lookup in d_revalidate 2016-04-12 20:01:35 -07:00
dir.c ext4: allow readdir()'s of large empty directories to be interrupted 2016-04-23 22:50:07 -04:00
ext4_crypto.h ext4: Use skcipher 2016-01-27 20:35:55 +08:00
ext4_extents.h ext4: fix misspellings in comments. 2016-03-09 23:49:05 -05:00
ext4_jbd2.c ext4: fix potential use after free in __ext4_journal_stop 2015-10-17 22:57:06 -04:00
ext4_jbd2.h ext4: do not ask jbd2 to write data for delalloc buffers 2016-04-24 00:56:08 -04:00
ext4.h ext4: fix races between changing inode journal mode and ext4_writepages 2016-04-25 23:22:35 -04:00
extents_status.c ext4: fix setting of referenced bit in ext4_es_lookup_extent() 2016-03-09 22:26:55 -05:00
extents_status.h ext4: move procfs registration code to fs/ext4/sysfs.c 2015-09-23 12:46:17 -04:00
extents.c ext4: fix jbd2 handle extension in ext4_ext_truncate_extend_restart() 2016-04-25 23:13:17 -04:00
file.c These changes contains a fix for overlayfs interacting with some 2016-04-07 17:22:20 -07:00
fsync.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
hash.c
ialloc.c ext4: fix misspellings in comments. 2016-03-09 23:49:05 -05:00
indirect.c ext4: return hole from ext4_map_blocks() 2016-03-09 22:54:00 -05:00
inline.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
inode.c ext4: fix races between changing inode journal mode and ext4_writepages 2016-04-25 23:22:35 -04:00
ioctl.c ext4: online defrag not supported with DAX 2016-02-27 10:28:52 -08:00
Kconfig ext4: Update EXT4_USE_FOR_EXT2 description 2015-09-24 13:27:47 +02:00
Makefile ext4: move sysfs code from super.c to fs/ext4/sysfs.c 2015-09-23 12:44:17 -04:00
mballoc.c mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
mballoc.h ext4: fix compile error while opening the macro DOUBLE_CHECK 2016-03-13 17:18:12 -04:00
migrate.c ext4: fix misspellings in comments. 2016-03-09 23:49:05 -05:00
mmp.c ext4: clean up error handling in the MMP support 2016-03-13 17:56:52 -04:00
move_extent.c ext4: do not ask jbd2 to write data for delalloc buffers 2016-04-24 00:56:08 -04:00
namei.c ext4: allow readdir()'s of large empty directories to be interrupted 2016-04-23 22:50:07 -04:00
page-io.c These changes contains a fix for overlayfs interacting with some 2016-04-07 17:22:20 -07:00
readpage.c These changes contains a fix for overlayfs interacting with some 2016-04-07 17:22:20 -07:00
resize.c ext4: fix potential integer overflow 2016-02-12 01:15:59 -05:00
super.c ext4: fix races between changing inode journal mode and ext4_writepages 2016-04-25 23:22:35 -04:00
symlink.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
sysfs.c ext4: add "static" to ext4_seq_##name##_fops struct 2015-11-26 15:52:24 -05:00
truncate.h ext4: fix races between page faults and hole punching 2015-12-07 14:28:03 -05:00
xattr_security.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr_trusted.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr_user.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr.c ext4: check if in-inode xattr is corrupted in ext4_expand_extra_isize_ea() 2016-03-22 16:13:15 -04:00
xattr.h mbcache2: rename to mbcache 2016-02-22 22:35:22 -05:00