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authorPeter Zijlstra <peterz@infradead.org>2011-06-16 12:23:22 +0200
committerIngo Molnar <mingo@elte.hu>2011-10-06 12:46:56 +0200
commitfa17b507f142d37aeac322a95f6f7c6375f25601 (patch)
tree5ff8b9d7087175aca85dff3393932fe9b5497425 /kernel/sched_rt.c
parent6eb57e0d65ebd99a71d435dc96d83e725752eef8 (diff)
downloadop-kernel-dev-fa17b507f142d37aeac322a95f6f7c6375f25601.zip
op-kernel-dev-fa17b507f142d37aeac322a95f6f7c6375f25601.tar.gz
sched: Wrap scheduler p->cpus_allowed access
This task is preparatory for the migrate_disable() implementation, but stands on its own and provides a cleanup. It currently only converts those sites required for task-placement. Kosaki-san once mentioned replacing cpus_allowed with a proper cpumask_t instead of the NR_CPUS sized array it currently is, that would also require something like this. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Link: http://lkml.kernel.org/n/tip-e42skvaddos99psip0vce41o@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
-rw-r--r--kernel/sched_rt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 0cc188c..57a1084 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1179,7 +1179,7 @@ static void deactivate_task(struct rq *rq, struct task_struct *p, int sleep);
static int pick_rt_task(struct rq *rq, struct task_struct *p, int cpu)
{
if (!task_running(rq, p) &&
- (cpu < 0 || cpumask_test_cpu(cpu, &p->cpus_allowed)) &&
+ (cpu < 0 || cpumask_test_cpu(cpu, tsk_cpus_allowed(p))) &&
(p->rt.nr_cpus_allowed > 1))
return 1;
return 0;
@@ -1324,7 +1324,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
*/
if (unlikely(task_rq(task) != rq ||
!cpumask_test_cpu(lowest_rq->cpu,
- &task->cpus_allowed) ||
+ tsk_cpus_allowed(task)) ||
task_running(rq, task) ||
!task->on_rq)) {
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