diff options
author | David S. Miller <davem@davemloft.net> | 2009-02-14 23:12:00 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-02-14 23:12:00 -0800 |
commit | 5e30589521518bff36fd2638b3c3d69679c50436 (patch) | |
tree | 6ac985658a06b0787e4354d0d16d380ea9b16a5a /kernel/sched_fair.c | |
parent | ac178ef0ae9eb44fd527d87aa9b6394e05f56e1f (diff) | |
parent | d2f8d7ee1a9b4650b4e43325b321801264f7c37a (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/wireless/iwlwifi/iwl-agn.c
drivers/net/wireless/iwlwifi/iwl3945-base.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 a7e50ba185a..0566f2a03c4 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; } |