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-rw-r--r--nptl/pthread_mutex_lock.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c
index 1c3ee4f..a17013b 100644
--- a/nptl/pthread_mutex_lock.c
+++ b/nptl/pthread_mutex_lock.c
@@ -408,7 +408,9 @@ __pthread_mutex_lock (mutex)
break;
if (oldval != ceilval)
- lll_futex_wait (&mutex->__data.__lock, ceilval | 2);
+ lll_futex_wait (&mutex->__data.__lock, ceilval | 2,
+ // XYZ check mutex flag
+ LLL_SHARED);
}
while (atomic_compare_and_exchange_val_acq (&mutex->__data.__lock,
ceilval | 2, ceilval)