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authorMike Galbraith <efault@gmx.de>2009-09-11 12:01:17 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-15 16:01:02 +0200
commit3cb63d527f76e25dbccce4f577f21aecfa2abac7 (patch)
tree2a4e940aa108b8c1f9a524dbf3294db88c5f9098 /kernel/sched_fair.c
parente6b1b2c9c0461c4e0971ed905ce3cda6512ee82a (diff)
downloadop-kernel-dev-3cb63d527f76e25dbccce4f577f21aecfa2abac7.zip
op-kernel-dev-3cb63d527f76e25dbccce4f577f21aecfa2abac7.tar.gz
sched: Complete buddy switches
Add a NEXT_BUDDY feature flag to aid in debugging. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
-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 cea5b82..4f6356e 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1501,7 +1501,8 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync)
*/
if (sched_feat(LAST_BUDDY) && likely(se->on_rq && curr != rq->idle))
set_last_buddy(se);
- set_next_buddy(pse);
+ if (sched_feat(NEXT_BUDDY))
+ set_next_buddy(pse);
/*
* We can come here with TIF_NEED_RESCHED already set from new task
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