OpenCloudOS-Kernel/fs/jbd
Eric Sandeen 7e2fb2d7e6 jbd: don't wake kjournald unnecessarily
Don't send an extra wakeup to kjournald in the case where we
already have the proper target in j_commit_request, i.e. that
commit has already been requested for commit.

commit d9b0193 "jbd: fix fsync() tid wraparound bug" changed
the logic leading to a wakeup, but it caused some extra wakeups
which were found to lead to a measurable performance regression.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2013-01-14 22:50:45 +01:00
..
Kconfig Revert "task_struct: make journal_info conditional" 2009-12-17 13:23:24 -08:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
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 wake kjournald unnecessarily 2013-01-14 22:50:45 +01:00
recovery.c jbd: Check return value of blkdev_issue_flush() 2012-07-09 23:38:36 +02:00
revoke.c jbd: clear revoked flag on buffers before a new transaction started 2011-11-22 01:20:53 +01:00
transaction.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00