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(parent: e291200) | patch
sched: Fix sched_exec() balancing
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 16 Dec 2009 17:04:37 +0000 (18:04 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 16 Dec 2009 18:01:56 +0000 (19:01 +0100)
commit3802290628348674985d14914f9bfee7b9084548
treeb6b513fa5651f570013f3eff86e843a9d52d1dcbtree | snapshot
parente2912009fb7b715728311b0d8fe327a1432b3f79commit | diff
sched: Fix sched_exec() balancing

Since we access ->cpus_allowed without holding rq->lock we need
a retry loop to validate the result, this comes for near free
when we merge sched_migrate_task() into sched_exec() since that
already does the needed check.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <20091216170517.884743662@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c diff | blob | history
Full containers within linux kernel