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| author | Ingo Molnar | 2009-02-11 09:22:04 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2009-02-11 09:22:04 +0100 |
| commit | 95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c (patch) | |
| tree | aa2aac22a5b329b778a6771a87bbf1945ad49bbd /kernel/sched.c | |
| parent | perf_counters: account NMI interrupts (diff) | |
| parent | Linux 2.6.29-rc4 (diff) | |
| download | kernel-qcow2-linux-95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c.tar.gz kernel-qcow2-linux-95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c.tar.xz kernel-qcow2-linux-95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c.zip | |
Merge commit 'v2.6.29-rc4' into perfcounters/core
Conflicts:
arch/x86/kernel/setup_percpu.c
arch/x86/mm/fault.c
drivers/acpi/processor_idle.c
kernel/irq/handle.c
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 173768f142ad..0952931ca7f6 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2311,6 +2311,16 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync) if (!sched_feat(SYNC_WAKEUPS)) sync = 0; + if (!sync) { + if (current->se.avg_overlap < sysctl_sched_migration_cost && + p->se.avg_overlap < sysctl_sched_migration_cost) + sync = 1; + } else { + if (current->se.avg_overlap >= sysctl_sched_migration_cost || + p->se.avg_overlap >= sysctl_sched_migration_cost) + sync = 0; + } + #ifdef CONFIG_SMP if (sched_feat(LB_WAKEUP_UPDATE)) { struct sched_domain *sd; @@ -4774,8 +4784,8 @@ EXPORT_SYMBOL(default_wake_function); * started to run but is not in state TASK_RUNNING. try_to_wake_up() returns * zero in this (rare) case, and we handle it by continuing to scan the queue. */ -static void __wake_up_common(wait_queue_head_t *q, unsigned int mode, - int nr_exclusive, int sync, void *key) +void __wake_up_common(wait_queue_head_t *q, unsigned int mode, + int nr_exclusive, int sync, void *key) { wait_queue_t *curr, *next; |