diff --git a/include/linux/sched.h b/include/linux/sched.h index 03dd224d066748266a00dbac9aeefa6f04320a66..c628a91514378b19796547a3b46f0adc17ba4539 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2082,12 +2082,20 @@ extern unsigned int sysctl_sched_cfs_bandwidth_slice; extern int rt_mutex_getprio(struct task_struct *p); extern void rt_mutex_setprio(struct task_struct *p, int prio); extern void rt_mutex_adjust_pi(struct task_struct *p); +static inline bool tsk_is_pi_blocked(struct task_struct *tsk) +{ + return tsk->pi_blocked_on != NULL; +} #else static inline int rt_mutex_getprio(struct task_struct *p) { return p->normal_prio; } # define rt_mutex_adjust_pi(p) do { } while (0) +static inline bool tsk_is_pi_blocked(struct task_struct *tsk) +{ + return false; +} #endif extern bool yield_to(struct task_struct *p, bool preempt); diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c2bbdecaa27dae171df8bb00049510871ebdd9e6..25e06a5e048b9d24a5fb9bd5b49a29d60294504a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3227,7 +3227,7 @@ static void __sched __schedule(void) static inline void sched_submit_work(struct task_struct *tsk) { - if (!tsk->state) + if (!tsk->state || tsk_is_pi_blocked(tsk)) return; /* * If we are going to sleep and we have plugged IO queued,