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Merge branch 'linus' into sched/core

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Merge reason: We are queueing up a dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2011-09-18 14:01:26 +02:00
parent 88ebc08ea9 003f6c9df5
commit bfa322c48d
893 changed files with 12531 additions and 4642 deletions
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43
kernel/sched.c
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@ -3206,7 +3206,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
local_irq_disable();
#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */
perf_event_task_sched_in(current);
perf_event_task_sched_in(prev, current);
#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
local_irq_enable();
#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */
@ -4420,9 +4420,9 @@ pick_next_task(struct rq *rq)
}
/*
* schedule() is the main scheduler function.
* __schedule() is the main scheduler function.
*/
asmlinkage void __sched schedule(void)
static void __sched __schedule(void)
{
struct task_struct *prev, *next;
unsigned long *switch_count;
@ -4463,16 +4463,6 @@ need_resched:
if (to_wakeup)
try_to_wake_up_local(to_wakeup);
}
/*
* If we are going to sleep and we have plugged IO
* queued, make sure to submit it to avoid deadlocks.
*/
if (blk_needs_flush_plug(prev)) {
raw_spin_unlock(&rq->lock);
blk_schedule_flush_plug(prev);
raw_spin_lock(&rq->lock);
}
}
switch_count = &prev->nvcsw;
}
@ -4510,6 +4500,26 @@ need_resched:
if (need_resched())
goto need_resched;
}
static inline void sched_submit_work(struct task_struct *tsk)
{
if (!tsk->state)
return;
/*
* If we are going to sleep and we have plugged IO queued,
* make sure to submit it to avoid deadlocks.
*/
if (blk_needs_flush_plug(tsk))
blk_schedule_flush_plug(tsk);
}
asmlinkage void schedule(void)
{
struct task_struct *tsk = current;
sched_submit_work(tsk);
__schedule();
}
EXPORT_SYMBOL(schedule);
#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
@ -4576,7 +4586,7 @@ asmlinkage void __sched notrace preempt_schedule(void)
do {
add_preempt_count_notrace(PREEMPT_ACTIVE);
schedule();
__schedule();
sub_preempt_count_notrace(PREEMPT_ACTIVE);
/*
@ -4604,7 +4614,7 @@ asmlinkage void __sched preempt_schedule_irq(void)
do {
add_preempt_count(PREEMPT_ACTIVE);
local_irq_enable();
schedule();
__schedule();
local_irq_disable();
sub_preempt_count(PREEMPT_ACTIVE);
@ -5729,7 +5739,7 @@ static inline int should_resched(void)
static void __cond_resched(void)
{
add_preempt_count(PREEMPT_ACTIVE);
schedule();
__schedule();
sub_preempt_count(PREEMPT_ACTIVE);
}
@ -7611,6 +7621,7 @@ static void __sdt_free(const struct cpumask *cpu_map)
struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j);
if (sd && (sd->flags & SD_OVERLAP))
free_sched_groups(sd->groups, 0);
kfree(*per_cpu_ptr(sdd->sd, j));
kfree(*per_cpu_ptr(sdd->sg, j));
kfree(*per_cpu_ptr(sdd->sgp, j));
}