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| author | Omar Sandoval <osandov@fb.com> | 2016-09-17 21:20:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-09-17 21:39:06 +0200 |
| commit | 5c64a8df0ca88c79c9cb74674c2481e5f7ede511 (patch) | |
| tree | a10aa8ab518921ee8f16511076a15ff2b64e52ec /kernel | |
| parent | sbitmap: re-initialize allocation hints after resize (diff) | |
| download | linux-5c64a8df0ca88c79c9cb74674c2481e5f7ede511.tar.xz linux-5c64a8df0ca88c79c9cb74674c2481e5f7ede511.zip | |
sbitmap: don't update the allocation hint on clear after resize
If we have a bunch of high-numbered bits allocated and then we resize
the struct sbitmap_queue, when those bits get cleared, we'll update the
hint and then have to re-randomize it repeatedly. Avoid that by checking
that the cleared bit is still a valid hint. No measurable performance
difference in the common case.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions