AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity
57a0da28ce
kernel_optimize_test/fs/ext4
History
Lukas Czerner 57a0da28ce ext4: fix data corruption caused by overlapping unaligned and aligned IO 
Unaligned AIO must be serialized because the zeroing of partial blocks
of unaligned AIO can result in data corruption in case it's overlapping
another in flight IO.

Currently we wait for all unwritten extents before we submit unaligned
AIO which protects data in case of unaligned AIO is following overlapping
IO. However if a unaligned AIO is followed by overlapping aligned AIO we
can still end up corrupting data.

To fix this, we must make sure that the unaligned AIO is the only IO in
flight by waiting for unwritten extents conversion not just before the
IO submission, but right after it as well.

This problem can be reproduced by xfstest generic/538

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
2019-05-10 21:45:33 -04:00
..
acl.c ext4: compare old and new mode before setting update_mode flag 2018-12-10 00:22:38 -05:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: cond_resched in work-heavy group loops 2019-04-25 12:58:01 -04:00
dir.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
ext4_extents.h ext4: adjust reserved cluster count when removing extents 2018-10-01 14:25:08 -04:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h Miscellaneous ext4 bug fixes for 5.1. 2019-03-24 13:41:37 -07:00
ext4.h ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
extents_status.c ext4: use BUG() instead of BUG_ON(1) 2019-04-07 12:24:43 -04:00
extents_status.h ext4: reduce reserved cluster count by number of allocated clusters 2018-10-01 14:24:08 -04:00
extents.c ext4: zero out the unused memory region in the extent tree block 2019-05-10 19:28:06 -04:00
file.c ext4: fix data corruption caused by overlapping unaligned and aligned IO 2019-05-10 21:45:33 -04:00
fsmap.c ext4: make function ‘ext4_getfsmap_find_fixed_metadata’ static 2018-05-10 11:50:04 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal" 2019-01-31 23:41:11 -05:00
hash.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
ialloc.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
indirect.c ext4: cleanup bh release code in ext4_ind_remove_space() 2019-03-23 11:56:01 -04:00
inline.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
inode.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
ioctl.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
Kconfig A large number of bug fixes and cleanups. One new feature to allow 2019-03-12 15:03:21 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mballoc.c ext4: cond_resched in work-heavy group loops 2019-04-25 12:58:01 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: clean up indentation issues, remove extraneous tabs 2018-12-04 00:16:44 -05:00
mmp.c ext4: don't mark mmp buffer head dirty 2018-09-15 17:11:25 -04:00
move_extent.c ext4: use IS_ENCRYPTED() to check encryption status 2019-01-23 23:56:43 -05:00
namei.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
page-io.c A large number of bug fixes and cleanups. One new feature to allow 2019-03-12 15:03:21 -07:00
readpage.c ext4: fix prefetchw of NULL page 2019-04-07 11:54:27 -04:00
resize.c ext4: avoid drop reference to iloc.bh twice 2019-04-25 11:44:15 -04:00
super.c ext4: fix ext4_show_options for file systems w/o journal 2019-04-30 23:08:15 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: export /sys/fs/ext4/feature/casefold if Unicode support is present 2019-05-06 14:03:52 -04:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr.c ext4: ignore e_value_offs for xattrs with value-in-ea-inode 2019-04-10 00:37:36 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00