diff options
| author | Eric Dumazet <[email protected]> | 2021-11-05 13:40:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-11-06 13:30:38 -0700 |
| commit | 8446b59baaf45e83e1187cdb174ac78ac5d7d0ae (patch) | |
| tree | db42faccf526b0e0476d2651643d022b3cba6976 /tools/perf/builtin-annotate.c | |
| parent | ebeac3ea995b59e823510937ab92825004e3fbaa (diff) | |
mm/page_alloc.c: do not acquire zone lock in is_free_buddy_page()
Grabbing zone lock in is_free_buddy_page() gives a wrong sense of
safety, and has potential performance implications when zone is
experiencing lock contention.
In any case, if a caller needs a stable result, it should grab zone lock
before calling this function.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/builtin-annotate.c')
0 files changed, 0 insertions, 0 deletions