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| author | Uros Bizjak <[email protected]> | 2022-05-18 20:49:53 +0200 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2022-05-19 23:46:09 +0200 |
| commit | 8491d1bdf5de152f27fc941e2dcdc4e66c950542 (patch) | |
| tree | c971126e067abf917f5204a5cd2ce87305240cae /lib/mpi/mpi-sub-ui.c | |
| parent | c2df0a6af177b6c06a859806a876f92b072dc624 (diff) | |
sched/clock: Use try_cmpxchg64 in sched_clock_{local,remote}
Use try_cmpxchg64 instead of cmpxchg64 (*ptr, old, new) != old in
sched_clock_{local,remote}. x86 cmpxchg returns success in ZF flag,
so this change saves a compare after cmpxchg (and related move
instruction in front of cmpxchg).
Signed-off-by: Uros Bizjak <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'lib/mpi/mpi-sub-ui.c')
0 files changed, 0 insertions, 0 deletions