commit 725e7580aaf98e9f7b22b8ccfc640ad0c09e2b08
author Rik van Riel <riel@redhat.com> Tue Feb 01 09:47:15 2011 -0500
committer Ingo Molnar <mingo@elte.hu> Thu Feb 03 14:20:32 2011 +0100
tree 8717e0fce19f74509ac1dffa91be95c3ef76c1e5
parent 6ea72f12069306b235151c5b05ac0cca7e1dedfa

sched: Check the right ->nr_running in yield_task_fair()

With CONFIG_FAIR_GROUP_SCHED, each task_group has its own cfs_rq.
Yielding to a task from another cfs_rq may be worthwhile, since
a process calling yield typically cannot use the CPU right now.

Therefor, we want to check the per-cpu nr_running, not the
cgroup local one.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20110201094715.798c4f86@annuminas.surriel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>