linux/fs/jbd2
Eric Sandeen e7b04ac00e jbd2: 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
transaction has already been requested for commit.

commit deeeaf13 "jbd2: 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>
[tytso@mit.edu: reworked check to make it clearer]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-01-30 00:39:28 -05:00
..
checkpoint.c jbd2: remove bh_state lock from checkpointing code 2012-03-13 22:45:25 -04:00
commit.c jbd2: fix assertion failure in commit code due to lacking transaction credits 2012-09-26 23:11:13 -04:00
journal.c jbd2: don't wake kjournald unnecessarily 2013-01-30 00:39:28 -05:00
Kconfig jbd2: Grab a reference to the crc32c driver if necessary 2012-05-27 07:50:56 -04:00
Makefile [PATCH] jbd2: rename jbd2 symbols to avoid duplication of jbd symbols 2006-10-11 11:14:15 -07:00
recovery.c jbd2: check return value of blkdev_issue_flush() 2012-08-17 09:56:17 -04:00
revoke.c jbd2: checksum revocation blocks 2012-05-27 08:08:24 -04:00
transaction.c Various bug fixes for ext4. Perhaps the most serious bug fixed is one 2013-01-02 09:57:34 -08:00