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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:44:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:44:22 +0100 |
| commit | f8a6b2b9cee298a9663cbe38ce1eb5240987cb62 (patch) | |
| tree | b356490269c9e77d164dcc1477792b882fbb8bdb /kernel/sched_fair.c | |
| parent | ba1511bf7fbda452138e4096bf10d5a382710f4f (diff) | |
| parent | 071a0bc2ceace31266836801510879407a3701fa (diff) | |
| download | blackbird-op-linux-f8a6b2b9cee298a9663cbe38ce1eb5240987cb62.tar.gz blackbird-op-linux-f8a6b2b9cee298a9663cbe38ce1eb5240987cb62.zip | |
Merge branch 'linus' into x86/apic
Conflicts:
arch/x86/kernel/acpi/boot.c
arch/x86/mm/fault.c
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index a7e50ba185ac..0566f2a03c42 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1191,15 +1191,20 @@ wake_affine(struct sched_domain *this_sd, struct rq *this_rq, int idx, unsigned long load, unsigned long this_load, unsigned int imbalance) { + struct task_struct *curr = this_rq->curr; + struct task_group *tg; unsigned long tl = this_load; unsigned long tl_per_task; - struct task_group *tg; unsigned long weight; int balanced; if (!(this_sd->flags & SD_WAKE_AFFINE) || !sched_feat(AFFINE_WAKEUPS)) return 0; + if (sync && (curr->se.avg_overlap > sysctl_sched_migration_cost || + p->se.avg_overlap > sysctl_sched_migration_cost)) + sync = 0; + /* * If sync wakeup then subtract the (maximum possible) * effect of the currently running task from the load @@ -1426,7 +1431,9 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync) if (!sched_feat(WAKEUP_PREEMPT)) return; - if (sched_feat(WAKEUP_OVERLAP) && sync) { + if (sched_feat(WAKEUP_OVERLAP) && (sync || + (se->avg_overlap < sysctl_sched_migration_cost && + pse->avg_overlap < sysctl_sched_migration_cost))) { resched_task(curr); return; } |
