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

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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>

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Rik van Riel 2011-02-01 09:47:15 -05:00 • committed by Ingo Molnar

parent 6ea72f1206

commit 725e7580aa

1 changed files with 1 additions and 1 deletions

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kernel/sched_fair.c

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