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| author | Eric Sandeen <sandeen@redhat.com> | 2013-01-30 06:39:28 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-01-30 06:39:28 +0100 |
| commit | e7b04ac00ee273cb2c699ed14139fc072add4097 (patch) | |
| tree | 07a7b90bec97ee73f0a7732e6ac1121f81264ea9 /fs/open.c | |
| parent | ext4: fix possible use-after-free with AIO (diff) | |
| download | linux-e7b04ac00ee273cb2c699ed14139fc072add4097.tar.xz linux-e7b04ac00ee273cb2c699ed14139fc072add4097.zip | |
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>
Diffstat (limited to 'fs/open.c')
0 files changed, 0 insertions, 0 deletions