iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
713e8dde3e
linux/fs/ext4
History
Theodore Ts'o 713e8dde3e ext4: fix ZERO_RANGE bug hidden by flag aliasing 
We accidently aliased EXT4_EX_NOCACHE and EXT4_GET_CONVERT_UNWRITTEN
falgs, which apparently was hiding a bug that was unmasked when this
flag aliasing issue was addressed (see the subsequent commit).  The
reproduction case was:

   fsx -N 10000 -l 500000 -r 4096 -t 4096 -w 4096 -Z -R -W /vdb/junk

... which would cause fsx to report corruption in the data file.

The fix we have is a bit of an overkill, but I'd much rather be
conservative for now, and we can optimize ZERO_RANGE_FL handling
later.  The fact that we need to zap the extent_status cache for the
inode is unfortunate, but correctness is far more important than
performance.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
2014-09-01 14:32:09 -04:00
..
acl.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c ext4: remove metadata reservation checks 2014-07-15 06:02:38 -04:00
bitmap.c
block_validity.c fs/ext4: use rbtree postorder iteration helper instead of opencoding 2014-01-23 16:37:03 -08:00
dir.c ext4: convert ext4_bread() to use the ERR_PTR convention 2014-08-29 20:52:15 -04:00
ext4_extents.h ext4: rename uninitialized extents to unwritten 2014-04-20 23:45:47 -04:00
ext4_jbd2.c ext4: make local functions static 2014-05-12 10:50:23 -04:00
ext4_jbd2.h ext4: make local functions static 2014-05-12 10:50:23 -04:00
ext4.h ext4: refactor ext4_move_extents code base 2014-08-30 23:52:19 -04:00
extents_status.c ext4: fix a potential deadlock in __ext4_es_shrink() 2014-07-12 15:32:24 -04:00
extents_status.h ext4: add ext4_es_store_pblock_status() 2014-02-19 20:15:15 -05:00
extents.c ext4: fix ZERO_RANGE bug hidden by flag aliasing 2014-09-01 14:32:09 -04:00
file.c ext4: remove readpage() check in ext4_mmap_file() 2014-07-15 09:56:19 -04:00
fsync.c ext4: Fix fsync error handling after filesystem abort 2013-06-12 22:38:04 -04:00
hash.c ext4: reduce one "if" comparison in ext4_dirhash() 2013-02-01 22:33:21 -05:00
ialloc.c ext4: fix potential null pointer dereference in ext4_free_inode 2014-07-12 16:11:42 -04:00
indirect.c ext4: fix punch hole on files with indirect mapping 2014-07-15 06:03:38 -04:00
inline.c ext4: check inline directory before converting 2014-07-28 13:06:26 -04:00
inode.c ext4: use ext4_update_i_disksize instead of opencoded ones 2014-08-30 23:34:06 -04:00
ioctl.c ext4: clean up error handling in swap_inode_boot_loader() 2014-02-17 20:44:36 -05:00
Kconfig ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG 2013-04-21 20:32:03 -04:00
Makefile ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
mballoc.c ext4: fix BUG_ON in mb_free_blocks() 2014-08-23 17:47:28 -04:00
mballoc.h ext4: remove unused ac_ex_scanned 2014-02-20 13:32:10 -05:00
migrate.c ext4: add i_data_sem sanity check 2014-07-27 22:28:15 -04:00
mmp.c ext4: make local functions static 2014-05-12 10:50:23 -04:00
move_extent.c ext4: refactor ext4_move_extents code base 2014-08-30 23:52:19 -04:00
namei.c ext4: remove a duplicate call in ext4_init_new_dir() 2014-08-29 23:20:44 -04:00
page-io.c Clean ups and miscellaneous bug fixes, in particular for the new 2014-06-08 13:03:35 -07:00
resize.c Clean ups and miscellaneous bug fixes, in particular for the new 2014-06-08 13:03:35 -07:00
super.c ext4: convert ext4_bread() to use the ERR_PTR convention 2014-08-29 20:52:15 -04:00
symlink.c ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
truncate.h
xattr_security.c
xattr_trusted.c
xattr_user.c
xattr.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
xattr.h ext4: each filesystem creates and uses its own mb_cache 2014-03-18 19:24:49 -04:00