sched: Convert pi_lock to raw_spinlock

Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 6f50ef55a6f..5962d7ccf24 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -933,7 +933,7 @@ NORET_TYPE void do_exit(long code)
          * an exiting task cleaning up the robust pi futexes.
          */
         smp_mb();
-        spin_unlock_wait(&tsk->pi_lock);
+        raw_spin_unlock_wait(&tsk->pi_lock);
 
         if (unlikely(in_atomic()))
                 printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",