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| author | Peter Zijlstra <[email protected]> | 2019-02-27 10:09:56 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-06-17 10:43:44 +0000 |
| commit | 2234a6d3a28a971182cc91d5679e444516421de0 (patch) | |
| tree | bea8d20799cc102fe565c3c1c5ccc69802c7bbf6 /fs/proc/array.c | |
| parent | x86/percpu, sched/fair: Avoid local_clock() (diff) | |
| download | kernel-2234a6d3a28a971182cc91d5679e444516421de0.tar.gz kernel-2234a6d3a28a971182cc91d5679e444516421de0.zip | |
x86/percpu: Optimize raw_cpu_xchg()
Since raw_cpu_xchg() doesn't need to be IRQ-safe, like
this_cpu_xchg(), we can use a simple load-store instead of the cmpxchg
loop.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions