diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 94bc99656963ac5ad78cada2c608b2d93db4e8c0..a7283c9beadff498968eb1ff506b5369077ae96c 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -105,8 +105,8 @@ struct user; * supposed to. */ #ifdef CONFIG_PREEMPT_VOLUNTARY -extern int cond_resched(void); -# define might_resched() cond_resched() +extern int _cond_resched(void); +# define might_resched() _cond_resched() #else # define might_resched() do { } while (0) #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index fe3f8fbc614ef2430bd3db8dfd0b09b5ae362516..7907845c234804c1010ffd14f77308b1d1842515 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1885,7 +1885,18 @@ static inline int need_resched(void) * cond_resched_lock() will drop the spinlock before scheduling, * cond_resched_softirq() will enable bhs before scheduling. */ -extern int cond_resched(void); +#ifdef CONFIG_PREEMPT +static inline int cond_resched(void) +{ + return 0; +} +#else +extern int _cond_resched(void); +static inline int cond_resched(void) +{ + return _cond_resched(); +} +#endif extern int cond_resched_lock(spinlock_t * lock); extern int cond_resched_softirq(void); diff --git a/kernel/sched.c b/kernel/sched.c index b9ee0f4db66a07a749a7f774dc0fec1053e9e3ed..6ee37602a6d832ff6c4c26179b0328b6f5ff625e 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4678,7 +4678,8 @@ static void __cond_resched(void) } while (need_resched()); } -int __sched cond_resched(void) +#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY) +int __sched _cond_resched(void) { if (need_resched() && !(preempt_count() & PREEMPT_ACTIVE) && system_state == SYSTEM_RUNNING) { @@ -4687,7 +4688,8 @@ int __sched cond_resched(void) } return 0; } -EXPORT_SYMBOL(cond_resched); +EXPORT_SYMBOL(_cond_resched); +#endif /* * cond_resched_lock() - if a reschedule is pending, drop the given lock,