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| author | Peter Collingbourne <pcc@google.com> | 2022-03-23 00:43:08 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 01:57:05 +0300 |
| commit | abe8b2ae64a31146748239a1525ffb275c4f360f (patch) | |
| tree | 31ddaf821a71ee2a11a4dbb0caa40a58e5e3fd5e /include/linux | |
| parent | 1dd214b8f21ca46d5431be9b2db8513c59e07a26 (diff) | |
| download | linux-abe8b2ae64a31146748239a1525ffb275c4f360f.tar.xz | |
mm/mmzone.c: use try_cmpxchg() in page_cpupid_xchg_last()
This will let us avoid an additional read from page->flags when retrying
the compare-exchange on some architectures.
Link: https://lkml.kernel.org/r/20220120011200.1322836-1-pcc@google.com
Link: https://linux-review.googlesource.com/id/I2e1f5b5b080ac9c4e0eb7f98768dba6fd7821693
Signed-off-by: Peter Collingbourne <pcc@google.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions