dingdinghua f1015c4477 jbd: fix race between write_metadata_buffer and get_write_access ... The function journal_write_metadata_buffer() calls jbd_unlock_bh_state(bh_in) too early; this could potentially allow another thread to call get_write_access on the buffer head, modify the data, and dirty it, and allowing the wrong data to be written into the journal. Fortunately, if we lose this race, the only time this will actually cause filesystem corruption is if there is a system crash or other unclean shutdown of the system before the next commit can take place. Signed-off-by: dingdinghua <dingdinghua85@gmail.com> Acked-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Jan Kara <jack@suse.cz>		2009-07-21 11:54:42 +02:00
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checkpoint.c
commit.c	jbd: fix race in buffer processing in commit code	2009-06-09 16:59:03 -07:00
journal.c	jbd: fix race between write_metadata_buffer and get_write_access	2009-07-21 11:54:42 +02:00
Kconfig
Makefile
recovery.c
revoke.c	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	2009-04-24 08:37:40 -07:00
transaction.c	jbd: Fix a race between checkpointing code and journal_get_write_access()	2009-07-15 21:30:07 +02:00