diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2011-06-16 12:23:22 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-10-06 12:46:56 +0200 |
| commit | fa17b507f142d37aeac322a95f6f7c6375f25601 (patch) | |
| tree | 5ff8b9d7087175aca85dff3393932fe9b5497425 /kernel/sched_rt.c | |
| parent | 6eb57e0d65ebd99a71d435dc96d83e725752eef8 (diff) | |
| download | linux-fa17b507f142d37aeac322a95f6f7c6375f25601.tar.gz linux-fa17b507f142d37aeac322a95f6f7c6375f25601.tar.bz2 linux-fa17b507f142d37aeac322a95f6f7c6375f25601.zip | |
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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 0cc188cf7664..57a10842afa1 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)) { |