diff options
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 5f6939cad314..ee200b2ac8dc 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4524,15 +4524,6 @@ asmlinkage long sys_sched_yield(void) return 0; } -static inline int __resched_legal(int expected_preempt_count) -{ - if (unlikely(preempt_count() != expected_preempt_count)) - return 0; - if (unlikely(system_state != SYSTEM_RUNNING)) - return 0; - return 1; -} - static void __cond_resched(void) { #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP @@ -4552,7 +4543,8 @@ static void __cond_resched(void) int __sched cond_resched(void) { - if (need_resched() && __resched_legal(0)) { + if (need_resched() && !(preempt_count() & PREEMPT_ACTIVE) && + system_state == SYSTEM_RUNNING) { __cond_resched(); return 1; } @@ -4578,7 +4570,7 @@ int cond_resched_lock(spinlock_t *lock) ret = 1; spin_lock(lock); } - if (need_resched() && __resched_legal(1)) { + if (need_resched() && system_state == SYSTEM_RUNNING) { spin_release(&lock->dep_map, 1, _THIS_IP_); _raw_spin_unlock(lock); preempt_enable_no_resched(); @@ -4594,7 +4586,7 @@ int __sched cond_resched_softirq(void) { BUG_ON(!in_softirq()); - if (need_resched() && __resched_legal(0)) { + if (need_resched() && system_state == SYSTEM_RUNNING) { raw_local_irq_disable(); _local_bh_enable(); raw_local_irq_enable(); |