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| author |   KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2011-05-19 15:08:58 +0900 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-05-28 17:02:57 +0200 |
| commit | 1e1b6c511d1b23cb7c3b619d82fc7bd9f620565d (patch) | |
| tree | c50e88412c8b42264177dc125f74a30f9c7a82d9 /kernel/kthread.c | |
| parent | sched: Fix ->min_vruntime calculation in dequeue_entity() (diff) | |
| download | linux-dev-1e1b6c511d1b23cb7c3b619d82fc7bd9f620565d.tar.xz linux-dev-1e1b6c511d1b23cb7c3b619d82fc7bd9f620565d.zip | |
cpuset: Fix cpuset_cpus_allowed_fallback(), don't update tsk->rt.nr_cpus_allowed
The rule is, we have to update tsk->rt.nr_cpus_allowed if we change
tsk->cpus_allowed. Otherwise RT scheduler may confuse.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4DD4B3FA.5060901@jp.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kthread.c')
| -rw-r--r-- | kernel/kthread.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index 3b34d2732bce..4ba7cccb4994 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -202,8 +202,8 @@ void kthread_bind(struct task_struct *p, unsigned int cpu) return; } - p->cpus_allowed = cpumask_of_cpu(cpu); - p->rt.nr_cpus_allowed = 1; + /* It's safe because the task is inactive. */ + do_set_cpus_allowed(p, cpumask_of(cpu)); p->flags |= PF_THREAD_BOUND; } EXPORT_SYMBOL(kthread_bind); |