Jan Kara 25389bb207 jbd: Fix lock ordering bug in journal_unmap_buffer() ... Commit 09e05d48 introduced a wait for transaction commit into journal_unmap_buffer() in the case we are truncating a buffer undergoing commit in the page stradding i_size on a filesystem with blocksize < pagesize. Sadly we forgot to drop buffer lock before waiting for transaction commit and thus deadlock is possible when kjournald wants to lock the buffer. Fix the problem by dropping the buffer lock before waiting for transaction commit. Since we are still holding page lock (and that is OK), buffer cannot disappear under us. CC: stable@vger.kernel.org # Wherever commit 09e05d48 was taken Signed-off-by: Jan Kara <jack@suse.cz>		2012-11-23 15:17:18 +01:00
..
checkpoint.c	jbd: Write journal superblock with WRITE_FUA after checkpointing	2012-05-15 23:34:37 +02:00
commit.c	jbd: Fix assertion failure in commit code due to lacking transaction credits	2012-09-12 15:52:03 +02:00
journal.c	jbd: don't write superblock when unmounting an ro filesystem	2012-08-15 13:53:30 +02:00
Kconfig
Makefile
recovery.c	jbd: Check return value of blkdev_issue_flush()	2012-07-09 23:38:36 +02:00
revoke.c
transaction.c	jbd: Fix lock ordering bug in journal_unmap_buffer()	2012-11-23 15:17:18 +01:00