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authorIngo Molnar <mingo@elte.hu>2007-11-09 22:39:39 +0100
committerIngo Molnar <mingo@elte.hu>2007-11-09 22:39:39 +0100
commit3e3e13f399ac8060a20d14d210a28dc02dda372e (patch)
treeb560a614e926f5f90e4096b6d4743b1b5fdfccb2 /kernel/sched_fair.c
parent52d3da1ad4f442cec877fbeb83902707b56da0cf (diff)
downloadblackbird-op-linux-3e3e13f399ac8060a20d14d210a28dc02dda372e.tar.gz
blackbird-op-linux-3e3e13f399ac8060a20d14d210a28dc02dda372e.zip
sched: remove PREEMPT_RESTRICT
remove PREEMPT_RESTRICT. (this is a separate commit so that any regression related to the removal itself is bisectable) Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
-rw-r--r--kernel/sched_fair.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 7264814ba62a..fbcb426029d0 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -546,7 +546,6 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int sleep)
update_stats_dequeue(cfs_rq, se);
if (sleep) {
- se->peer_preempt = 0;
#ifdef CONFIG_SCHEDSTATS
if (entity_is_task(se)) {
struct task_struct *tsk = task_of(se);
@@ -574,10 +573,8 @@ check_preempt_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr)
ideal_runtime = sched_slice(cfs_rq, curr);
delta_exec = curr->sum_exec_runtime - curr->prev_sum_exec_runtime;
- if (delta_exec > ideal_runtime ||
- (sched_feat(PREEMPT_RESTRICT) && curr->peer_preempt))
+ if (delta_exec > ideal_runtime)
resched_task(rq_of(cfs_rq)->curr);
- curr->peer_preempt = 0;
}
static void
@@ -867,9 +864,7 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
gran = calc_delta_fair(gran, &se->load);
if (delta > gran) {
- int now = !sched_feat(PREEMPT_RESTRICT);
-
- if (now || p->prio < curr->prio || !se->peer_preempt++)
+ if (p->prio < curr->prio)
resched_task(curr);
}
}
@@ -1083,7 +1078,6 @@ static void task_new_fair(struct rq *rq, struct task_struct *p)
swap(curr->vruntime, se->vruntime);
}
- se->peer_preempt = 0;
enqueue_task_fair(rq, p, 0);
resched_task(rq->curr);
}
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