locking/pv-qspinlock: Use cmpxchg_release() in __pv_queued_spin_unlock()

[linux-2.6-microblaze.git] / kernel / locking / qspinlock_paravirt.h

diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index 3acf16d..e3b5520 100644 (file)
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -540,7 +540,7 @@ __visible void __pv_queued_spin_unlock(struct qspinlock *lock)
         * unhash. Otherwise it would be possible to have multiple @lock
         * entries, which would be BAD.
         */
-       locked = cmpxchg(&l->locked, _Q_LOCKED_VAL, 0);
+       locked = cmpxchg_release(&l->locked, _Q_LOCKED_VAL, 0);
        if (likely(locked == _Q_LOCKED_VAL))
                return;