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-rw-r--r--src/thread/__lock.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/__lock.c b/src/thread/__lock.c
index 21c85fc0..d1717956 100644
--- a/src/thread/__lock.c
+++ b/src/thread/__lock.c
@@ -5,7 +5,7 @@ void __lock(volatile int *l)
 	int spins=10000;
 	/* Do not use futexes because we insist that unlocking is a simple
 	 * assignment to optimize non-pathological code with no contention. */
-	while (a_xchg(l, 1))
+	while (a_swap(l, 1))
 		if (spins) spins--, a_spin();
 		else __syscall(SYS_sched_yield);
 }