core.c (c5491ea779793f977d282754db478157cc409d82) core.c (ba74c1448f127649046615ec017bded7b2a76f29)
1/*
2 * kernel/sched/core.c
3 *
4 * Kernel scheduler and related syscalls
5 *
6 * Copyright (C) 1991-2002 Linus Torvalds
7 *
8 * 1996-12-23 Modified by Dave Grothe to fix bugs in semaphores and

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3215 */
3216 cpu = smp_processor_id();
3217 rq = cpu_rq(cpu);
3218 } else
3219 raw_spin_unlock_irq(&rq->lock);
3220
3221 post_schedule(rq);
3222
1/*
2 * kernel/sched/core.c
3 *
4 * Kernel scheduler and related syscalls
5 *
6 * Copyright (C) 1991-2002 Linus Torvalds
7 *
8 * 1996-12-23 Modified by Dave Grothe to fix bugs in semaphores and

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3215 */
3216 cpu = smp_processor_id();
3217 rq = cpu_rq(cpu);
3218 } else
3219 raw_spin_unlock_irq(&rq->lock);
3220
3221 post_schedule(rq);
3222
3223 preempt_enable_no_resched();
3223 sched_preempt_enable_no_resched();
3224 if (need_resched())
3225 goto need_resched;
3226}
3227
3228static inline void sched_submit_work(struct task_struct *tsk)
3229{
3230 if (!tsk->state)
3231 return;

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3248
3249/**
3250 * schedule_preempt_disabled - called with preemption disabled
3251 *
3252 * Returns with preemption disabled. Note: preempt_count must be 1
3253 */
3254void __sched schedule_preempt_disabled(void)
3255{
3224 if (need_resched())
3225 goto need_resched;
3226}
3227
3228static inline void sched_submit_work(struct task_struct *tsk)
3229{
3230 if (!tsk->state)
3231 return;

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3248
3249/**
3250 * schedule_preempt_disabled - called with preemption disabled
3251 *
3252 * Returns with preemption disabled. Note: preempt_count must be 1
3253 */
3254void __sched schedule_preempt_disabled(void)
3255{
3256 preempt_enable_no_resched();
3256 sched_preempt_enable_no_resched();
3257 schedule();
3258 preempt_disable();
3259}
3260
3261#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
3262
3263static inline bool owner_running(struct mutex *lock, struct task_struct *owner)
3264{

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4481
4482 /*
4483 * Since we are going to call schedule() anyway, there's
4484 * no need to preempt or enable interrupts:
4485 */
4486 __release(rq->lock);
4487 spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
4488 do_raw_spin_unlock(&rq->lock);
3257 schedule();
3258 preempt_disable();
3259}
3260
3261#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
3262
3263static inline bool owner_running(struct mutex *lock, struct task_struct *owner)
3264{

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4481
4482 /*
4483 * Since we are going to call schedule() anyway, there's
4484 * no need to preempt or enable interrupts:
4485 */
4486 __release(rq->lock);
4487 spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
4488 do_raw_spin_unlock(&rq->lock);
4489 preempt_enable_no_resched();
4489 sched_preempt_enable_no_resched();
4490
4491 schedule();
4492
4493 return 0;
4494}
4495
4496static inline int should_resched(void)
4497{

--- 3659 unchanged lines hidden --- 		4490
4491 schedule();
4492
4493 return 0;
4494}
4495
4496static inline int should_resched(void)
4497{

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