Commit e6a52033 authored Sep 29, 2017 by leilei.lin Committed by Ingo Molnar Oct 10, 2017

perf/core: Fix cgroup time when scheduling descendants



Update cgroup time when an event is scheduled in by descendants.

Reviewed-and-tested-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: leilei.lin <leilei.lin@alibaba-inc.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: brendan.d.gregg@gmail.com
Cc: yang_oliver@hotmail.com
Link: http://lkml.kernel.org/r/CALPjY3mkHiekRkRECzMi9G-bjUQOvOjVBAqxmWkTzc-g+0LwMg@mail.gmail.com


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

parent df0062b2

kernel/events/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -662,7 +662,7 @@ static inline void update_cgrp_time_from_event(struct perf_event *event)
		/*
		* Do not update time when cgroup is not active
		*/
		if (cgrp == event->cgrp)
		if (cgroup_is_descendant(cgrp->css.cgroup, event->cgrp->css.cgroup))
		__update_cgrp_time(event->cgrp);
		}