diff options
| author | Peter Zijlstra <[email protected]> | 2024-08-07 13:29:29 +0200 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2024-08-08 12:27:32 +0200 |
| commit | 3e15a3fe3a2a170c5be52783667706875c088f96 (patch) | |
| tree | 36dbbeedbb73c687d696efce89f12ac6d7c7000e | |
| parent | 5d95a2af973d47260b1e1828953fc860c0094052 (diff) | |
perf: Optimize __pmu_ctx_sched_out()
There is is no point in doing the perf_pmu_disable() dance just to do
nothing. This happens for ctx_sched_out(.type = EVENT_TIME) for
instance.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Reviewed-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
| -rw-r--r-- | kernel/events/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 197d3be443bb..9893ba5e98aa 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3312,7 +3312,7 @@ static void __pmu_ctx_sched_out(struct perf_event_pmu_context *pmu_ctx, cpc->task_epc = NULL; } - if (!event_type) + if (!(event_type & EVENT_ALL)) return; perf_pmu_disable(pmu); |