tree dd9beeb2cc30306f13db96191d161b72062b260e
parent c182ae42cc3611f7b3fa803c0bcab6e5d29bea63
author Jan Kara <jack@suse.cz> 1346683842 +0200
committer Jan Kara <jack@suse.cz> 1346709883 +0200

ext3: Fix fdatasync() for files with only i_size changes

Code tracking when transaction needs to be committed on fdatasync(2) forgets
to handle a situation when only inode's i_size is changed. Thus in such
situations fdatasync(2) doesn't force transaction with new i_size to disk
and that can result in wrong i_size after a crash.

Fix the issue by updating inode's i_datasync_tid whenever its size is
updated.

CC: <stable@vger.kernel.org> # >= 2.6.32
Reported-by: Kristian Nielsen <knielsen@knielsen-hq.org>
Signed-off-by: Jan Kara <jack@suse.cz>