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authorIngo Molnar <mingo@elte.hu>2007-10-15 17:00:14 +0200
committerIngo Molnar <mingo@elte.hu>2007-10-15 17:00:14 +0200
commit00bf7bfc2eaf775b634774e9ec435d720b6ecee7 (patch)
tree1f816516361276a56b9dee6b39e90361dc3468be /kernel/sched.c
parent0702e3ebc1e42576a04d29f8adacf13be825b800 (diff)
downloadop-kernel-dev-00bf7bfc2eaf775b634774e9ec435d720b6ecee7.zip
op-kernel-dev-00bf7bfc2eaf775b634774e9ec435d720b6ecee7.tar.gz
sched: fix: move the CPU check into ->task_new_fair()
noticed by Peter Zijlstra: fix: move the CPU check into ->task_new_fair(), this way we can call place_entity() and get child ->vruntime right at initial wakeup time. (without this there can be large latencies) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index f2b8db4..b41ef66 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1660,17 +1660,14 @@ void fastcall wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
{
unsigned long flags;
struct rq *rq;
- int this_cpu;
rq = task_rq_lock(p, &flags);
BUG_ON(p->state != TASK_RUNNING);
- this_cpu = smp_processor_id(); /* parent's CPU */
update_rq_clock(rq);
p->prio = effective_prio(p);
- if (task_cpu(p) != this_cpu || !p->sched_class->task_new ||
- !current->se.on_rq) {
+ if (!p->sched_class->task_new || !current->se.on_rq || !rq->cfs.curr) {
activate_task(rq, p, 0);
} else {
/*
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