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authorMike Galbraith <efault@gmx.de>2009-09-19 16:52:35 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-19 17:11:31 +0200
commit3f04e8cd5b24727a2500f8ab8f3de730ba47b02c (patch)
treed4f11319d7508055dffb13c4aafc623fd3a0180f /kernel
parenta2e7a7eb2fea109891ffff90f947e8306080a2a3 (diff)
downloadop-kernel-dev-3f04e8cd5b24727a2500f8ab8f3de730ba47b02c.zip
op-kernel-dev-3f04e8cd5b24727a2500f8ab8f3de730ba47b02c.tar.gz
sched: Re-add lost cpu_allowed check to sched_fair.c::select_task_rq_fair()
While doing some testing, I pinned mplayer, only to find it following X around like a puppy. Looking at commit c88d591, I found a cpu_allowed check that went AWOL. I plugged it back in where it looks like it needs to go, and now when I say "sit, stay!", mplayer obeys again. 'c88d591 sched: Merge select_task_rq_fair() and sched_balance_self()' accidentally dropped the check, causing wake_affine() to pull pinned tasks - put it back. [ v2: use a cheaper version from Peter ] Signed-off-by: Mike Galbraith <efault@gmx.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched_fair.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 29b35a7..566e3bb 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1339,7 +1339,8 @@ static int select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flag
int sync = wake_flags & WF_SYNC;
if (sd_flag & SD_BALANCE_WAKE) {
- if (sched_feat(AFFINE_WAKEUPS))
+ if (sched_feat(AFFINE_WAKEUPS) &&
+ cpumask_test_cpu(cpu, &p->cpus_allowed))
want_affine = 1;
new_cpu = prev_cpu;
}
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