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| author | Mike Galbraith <efault@gmx.de> | 2010-03-11 17:17:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-11 18:32:52 +0100 |
| commit | f2e74eeac03ffb779d64b66a643c5e598145a28b (patch) | |
| tree | 3e609ce880c06d07e5c605c48789bd6da089ad39 | |
| parent | 5ca9880c6f4ba4c84b517bc2fed5366adf63d191 (diff) | |
| download | linux-f2e74eeac03ffb779d64b66a643c5e598145a28b.tar.gz linux-f2e74eeac03ffb779d64b66a643c5e598145a28b.tar.bz2 linux-f2e74eeac03ffb779d64b66a643c5e598145a28b.zip | |
sched: Remove WAKEUP_SYNC feature
This feature never earned its keep, remove it.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1268301591.6785.42.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched_fair.c | 4 | ||||
| -rw-r--r-- | kernel/sched_features.h | 5 |
2 files changed, 0 insertions, 9 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 97682f925ed5..1d99535b0928 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1658,7 +1658,6 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_ struct task_struct *curr = rq->curr; struct sched_entity *se = &curr->se, *pse = &p->se; struct cfs_rq *cfs_rq = task_cfs_rq(curr); - int sync = wake_flags & WF_SYNC; int scale = cfs_rq->nr_running >= sched_nr_latency; if (unlikely(rt_prio(p->prio))) @@ -1691,9 +1690,6 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_ if (unlikely(curr->policy == SCHED_IDLE)) goto preempt; - if (sched_feat(WAKEUP_SYNC) && sync) - goto preempt; - if (!sched_feat(WAKEUP_PREEMPT)) return; diff --git a/kernel/sched_features.h b/kernel/sched_features.h index 850f9809cf81..1cb7c4701bf3 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -23,11 +23,6 @@ SCHED_FEAT(WAKEUP_PREEMPT, 1) SCHED_FEAT(ASYM_GRAN, 1) /* - * Always wakeup-preempt SYNC wakeups, see SYNC_WAKEUPS. - */ -SCHED_FEAT(WAKEUP_SYNC, 0) - -/* * Use the SYNC wakeup hint, pipes and the likes use this to indicate * the remote end is likely to consume the data we just wrote, and * therefore has cache benefit from being placed on the same cpu, see |