Commit 6f932e5b authored Feb 24, 2016 by Peter Zijlstra Committed by Ingo Molnar Feb 25, 2016

perf: Only update context time when active



Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dvyukov@google.com
Cc: eranian@google.com
Cc: oleg@redhat.com
Cc: panand@redhat.com
Cc: sasha.levin@oracle.com
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/20160224174947.860690919@infradead.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent a4f4bb6d

kernel/events/core.c

+6 −6

Original line number	Diff line number	Diff line
		@@ -2170,12 +2170,12 @@ perf_install_in_context(struct perf_event_context *ctx,
		raw_spin_unlock_irq(&ctx->lock);
		return;
		}

		if (ctx->is_active) {
		update_context_time(ctx);
		/*
		* Update cgrp time only if current cgrp matches event->cgrp.
		* Must be done before calling add_event_to_ctx().
		*/
		update_cgrp_time_from_event(event);
		}

		add_event_to_ctx(event, ctx);
		raw_spin_unlock_irq(&ctx->lock);

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