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Diffstat (limited to 'nptl/pthread_spin_unlock.c')
-rw-r--r--nptl/pthread_spin_unlock.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/nptl/pthread_spin_unlock.c b/nptl/pthread_spin_unlock.c
index 5fd73e578b..f83b69639a 100644
--- a/nptl/pthread_spin_unlock.c
+++ b/nptl/pthread_spin_unlock.c
@@ -23,7 +23,9 @@
int
pthread_spin_unlock (pthread_spinlock_t *lock)
{
- atomic_full_barrier ();
- *lock = 0;
+ /* The atomic_store_release synchronizes-with the atomic_exchange_acquire
+ or atomic_compare_exchange_weak_acquire in pthread_spin_lock /
+ pthread_spin_trylock. */
+ atomic_store_release (lock, 0);
return 0;
}