diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-09-27 08:40:24 -0400 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-02-15 10:32:50 -0600 |
| commit | 175aa15d57976b31097822967f07bab60c24718c (patch) | |
| tree | 3eb2d9b95e4d0a172c4ed6a80f1ae9b1819af6a6 /kernel | |
| parent | 4a21cc20bd19edea4754e9704815eec996599825 (diff) | |
sched: Do not compare cpu masks in scheduler
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Clark Williams <williams@redhat.com>
Link: http://lkml.kernel.org/r/20110927124423.128129033@goodmis.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 579724d2a0b4..1d0789134e78 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4385,16 +4385,12 @@ static inline void update_migrate_disable(struct task_struct *p) */ mask = tsk_cpus_allowed(p); - WARN_ON(!cpumask_test_cpu(smp_processor_id(), mask)); + if (p->sched_class->set_cpus_allowed) + p->sched_class->set_cpus_allowed(p, mask); + p->rt.nr_cpus_allowed = cpumask_weight(mask); - if (!cpumask_equal(&p->cpus_allowed, mask)) { - if (p->sched_class->set_cpus_allowed) - p->sched_class->set_cpus_allowed(p, mask); - p->rt.nr_cpus_allowed = cpumask_weight(mask); - - /* Let migrate_enable know to fix things back up */ - p->migrate_disable |= MIGRATE_DISABLE_SET_AFFIN; - } + /* Let migrate_enable know to fix things back up */ + p->migrate_disable |= MIGRATE_DISABLE_SET_AFFIN; } void migrate_disable(void) |