diff options
| author | Christoph Hellwig <[email protected]> | 2017-10-23 18:31:50 -0700 |
|---|---|---|
| committer | Darrick J. Wong <[email protected]> | 2017-10-23 18:31:50 -0700 |
| commit | 942491c9e6d631c012f3c4ea8e7777b0b02edeab (patch) | |
| tree | b316042eb963aaede79c0ce3aa1ac8772a38f4db /tools/perf/scripts/python | |
| parent | 785545c8982604fe3ba79d16409e83993be77d5e (diff) | |
xfs: fix AIM7 regression
Apparently our current rwsem code doesn't like doing the trylock, then
lock for real scheme. So change our read/write methods to just do the
trylock for the RWF_NOWAIT case. This fixes a ~25% regression in
AIM7.
Fixes: 91f9943e ("fs: support RWF_NOWAIT for buffered reads")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Darrick J. Wong <[email protected]>
Signed-off-by: Darrick J. Wong <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions