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Commit 4939602a2441306008c6dca38216b741d4e09a42

Authored by Peter Zijlstra
Committed by Ingo Molnar
1 parent fa17b507f1

sched: Unify the ->cpus_allowed mask copy 

Currently every sched_class::set_cpus_allowed() implementation has to
copy the cpumask into task_struct::cpus_allowed, this is pointless,
put this copy in the generic code.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/n/tip-jhl5s9fckd9ptw1fzbqqlrd3@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Showing 2 changed files with 3 additions and 7 deletions Side-by-side Diff

... ... @@ -6161,10 +6161,9 @@
6161 6161 {
6162 6162 if (p->sched_class && p->sched_class->set_cpus_allowed)
6163 6163 p->sched_class->set_cpus_allowed(p, new_mask);
6164   - else {
6165   - cpumask_copy(&p->cpus_allowed, new_mask);
6166   - p->rt.nr_cpus_allowed = cpumask_weight(new_mask);
6167   - }
  6164 +
  6165 + cpumask_copy(&p->cpus_allowed, new_mask);
  6166 + p->rt.nr_cpus_allowed = cpumask_weight(new_mask);
6168 6167 }
6169 6168  
6170 6169 /*
... ... @@ -1608,9 +1608,6 @@
1608 1608  
1609 1609 update_rt_migration(&rq->rt);
1610 1610 }
1611   -
1612   - cpumask_copy(&p->cpus_allowed, new_mask);
1613   - p->rt.nr_cpus_allowed = weight;
1614 1611 }
1615 1612  
1616 1613 /* Assumes rq->lock is held */