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-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index a617917da7..621fdcee88 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -115,7 +115,7 @@ extern int __lll_timedlock_wait
#define lll_mutex_unlock(lock) \
((void) ({ \
int *__futex = &(lock); \
- int __val = atomic_exchange (__futex, 0); \
+ int __val = atomic_exchange_rel (__futex, 0); \
if (__builtin_expect (__val > 1, 0)) \
lll_futex_wake (__futex, 1); \
}))