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d311d79de3
It actually goes back to 2004 ([PATCH] Concurrent O_SYNC write support) when sync_page_range() had been introduced; generic_file_write{,v}() correctly synced pos_after_write - written .. pos_after_write - 1 but generic_file_aio_write() synced pos_before_write .. pos_before_write + written - 1 instead. Which is not the same thing with O_APPEND, obviously. A couple of years later correct variant had been killed off when everything switched to use of generic_file_aio_write(). All users of generic_file_aio_write() are affected, and the same bug has been copied into other instances of ->aio_write(). The fix is trivial; the only subtle point is that generic_write_sync() ought to be inlined to avoid calculations useless for the majority of calls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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.. | ||
acl.c | ||
acl.h | ||
balloc.c | ||
bitmap.c | ||
block_validity.c | ||
dir.c | ||
ext4_extents.h | ||
ext4_jbd2.c | ||
ext4_jbd2.h | ||
ext4.h | ||
extents_status.c | ||
extents_status.h | ||
extents.c | ||
file.c | ||
fsync.c | ||
hash.c | ||
ialloc.c | ||
indirect.c | ||
inline.c | ||
inode.c | ||
ioctl.c | ||
Kconfig | ||
Makefile | ||
mballoc.c | ||
mballoc.h | ||
migrate.c | ||
mmp.c | ||
move_extent.c | ||
namei.c | ||
page-io.c | ||
resize.c | ||
super.c | ||
symlink.c | ||
truncate.h | ||
xattr_security.c | ||
xattr_trusted.c | ||
xattr_user.c | ||
xattr.c | ||
xattr.h |