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-rw-r--r--linuxthreads/spinlock.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/linuxthreads/spinlock.h b/linuxthreads/spinlock.h
index d324abbc84..1707d3e42a 100644
--- a/linuxthreads/spinlock.h
+++ b/linuxthreads/spinlock.h
@@ -15,9 +15,11 @@
 
 /* Spin locks */
 
+extern void __pthread_acquire(int * spinlock);
+
 static inline void acquire(int * spinlock)
 {
-  while (testandset(spinlock)) __sched_yield();
+  if (testandset(spinlock)) __pthread_acquire(spinlock);
 }
 
 static inline void release(int * spinlock)