sched: Fix sched_exec() balancing

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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>

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Peter Zijlstra 2009-12-16 18:04:37 +01:00 • committed by Ingo Molnar

parent e2912009fb

commit 3802290628

1 changed files with 23 additions and 22 deletions

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45

kernel/sched.c

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