Commit-ID: f6f83785222b0ee037f7be90731f62a649292b5e Gitweb: http://git.kernel.org/tip/f6f83785222b0ee037f7be90731f62a649292b5e Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> AuthorDate: Fri, 20 Nov 2009 22:19:51 +0100 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Sat, 21 Nov 2009 14:11:38 +0100 perf: Optimize __perf_event_read() Both callers actually have IRQs disabled, no need doing so again. Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> LKML-Reference: <20091120212508.863685796@xxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/perf_event.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 65f4dab..e66f6c4 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -1517,7 +1517,6 @@ static void __perf_event_read(void *info) struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context); struct perf_event *event = info; struct perf_event_context *ctx = event->ctx; - unsigned long flags; /* * If this is a task context, we need to check whether it is @@ -1529,12 +1528,10 @@ static void __perf_event_read(void *info) if (ctx->task && cpuctx->task_ctx != ctx) return; - local_irq_save(flags); if (ctx->is_active) update_context_time(ctx); event->pmu->read(event); update_event_times(event); - local_irq_restore(flags); } static u64 perf_event_read(struct perf_event *event) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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