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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-09-10 13:42:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-15 16:01:04 +0200 |
| commit | 5f3edc1b1ead6d9bd45a85c551f44eff8fe76b9f (patch) | |
| tree | 46f987010ca017be945831b76d8ea846f1ba8fc9 /kernel/sched.c | |
| parent | aaee1203ca52b9db799433c33c9bffc33cdf8909 (diff) | |
| download | lwn-5f3edc1b1ead6d9bd45a85c551f44eff8fe76b9f.tar.gz lwn-5f3edc1b1ead6d9bd45a85c551f44eff8fe76b9f.zip | |
sched: Hook sched_balance_self() into sched_class::select_task_rq()
Rather ugly patch to fully place the sched_balance_self() code
inside the fair class.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 60400a22401f..32b7a81230c2 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2350,7 +2350,7 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync) if (unlikely(task_running(rq, p))) goto out_activate; - cpu = p->sched_class->select_task_rq(p, sync); + cpu = p->sched_class->select_task_rq(p, SD_BALANCE_WAKE, sync); if (cpu != orig_cpu) { set_task_cpu(p, cpu); task_rq_unlock(rq, &flags); @@ -2525,11 +2525,6 @@ void sched_fork(struct task_struct *p, int clone_flags) __sched_fork(p); -#ifdef CONFIG_SMP - cpu = sched_balance_self(cpu, SD_BALANCE_FORK); -#endif - set_task_cpu(p, cpu); - /* * Make sure we do not leak PI boosting priority to the child. */ @@ -2560,6 +2555,11 @@ void sched_fork(struct task_struct *p, int clone_flags) if (!rt_prio(p->prio)) p->sched_class = &fair_sched_class; +#ifdef CONFIG_SMP + cpu = p->sched_class->select_task_rq(p, SD_BALANCE_FORK, 0); +#endif + set_task_cpu(p, cpu); + #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) if (likely(sched_info_on())) memset(&p->sched_info, 0, sizeof(p->sched_info)); @@ -3114,7 +3114,7 @@ out: void sched_exec(void) { int new_cpu, this_cpu = get_cpu(); - new_cpu = sched_balance_self(this_cpu, SD_BALANCE_EXEC); + new_cpu = current->sched_class->select_task_rq(current, SD_BALANCE_EXEC, 0); put_cpu(); if (new_cpu != this_cpu) sched_migrate_task(current, new_cpu); |