Preemption is disabled in mark_wakeup_next_waiter() not in rt_mutex_slowunlock().
Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- kernel/locking/rtmutex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -1305,7 +1305,7 @@ void __sched rt_mutex_postunlock(struct { wake_up_q(wake_q); - /* Pairs with preempt_disable() in rt_mutex_slowunlock() */ + /* Pairs with preempt_disable() in mark_wakeup_next_waiter() */ preempt_enable(); }