diff options
| author | Amir Goldstein <[email protected]> | 2019-05-05 12:15:49 +0300 |
|---|---|---|
| committer | Jan Kara <[email protected]> | 2019-05-09 12:44:00 +0200 |
| commit | 4d8e7055a4058ee191296699803c5090e14f0dff (patch) | |
| tree | a7e72b2ea6aea71fc5f82dbe6a52a224d4f23dc2 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 11a6f8e2db26519b6468686411deafab81c14741 (diff) | |
fsnotify: fix unlink performance regression
__fsnotify_parent() has an optimization in place to avoid unneeded
take_dentry_name_snapshot(). When fsnotify_nameremove() was changed
not to call __fsnotify_parent(), we left out the optimization.
Kernel test robot reported a 5% performance regression in concurrent
unlink() workload.
Reported-by: kernel test robot <[email protected]>
Link: https://lore.kernel.org/lkml/20190505062153.GG29809@shao2-debian/
Link: https://lore.kernel.org/linux-fsdevel/[email protected]/
Fixes: 5f02a8776384 ("fsnotify: annotate directory entry modification events")
CC: [email protected]
Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions