scheduler fix

Linus,

Please pull the latest sched/urgent git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-2023-10-01

# HEAD: fc09027786c900368de98d03d40af058bcb01ad9 sched/rt: Fix live lock between select_fallback_rq() and RT push

Fix a RT tasks related lockup/live-lock during CPU offlining.

Thanks,

Ingo

------------------>
Joel Fernandes (Google) (1):
sched/rt: Fix live lock between select_fallback_rq() and RT push

 kernel/sched/cpupri.c | 1 +
 1 file changed, 1 insertion(+)

index a286e726eb4b..42c40cfdf836 100644
@@ -101,6 +101,7 @@ static inline int __cpupri_find(struct cpupri *cp, struct task_struct *p,
 
 	if (lowest_mask) {
 		cpumask_and(lowest_mask, &p->cpus_mask, vec->mask);
+		cpumask_and(lowest_mask, lowest_mask, cpu_active_mask);
 
 		/*
 		 * We have to ensure that we have at least one bit