path: root/arch/i386/atomic_arch.h
diff options
authorRich Felker <>2016-03-29 21:22:52 -0400
committerRich Felker <>2016-03-29 21:27:28 -0400
commit5c3412d22555d03a1c00578ba8faaa8dc9206420 (patch)
treebb92d6cc16fd526d6f31dff0994636c0b3a07f34 /arch/i386/atomic_arch.h
parent6d1a3dfeaf2caac4033a3c65822fb4e7e14866c7 (diff)
fix regression disabling use of pause instruction for x86 a_spin
commits e24984efd5c6ac5ea8e6cb6cd914fa8435d458bc and 16b55298dc4b6a54d287d7494e04542667ef8861 inadvertently disabled the a_spin implementations for i386, x86_64, and x32 by defining a macro named a_pause instead of a_spin. this should not have caused any functional regression, but it inhibited cpu relaxation while spinning for locks. bug reported by George Kulakowski.
Diffstat (limited to 'arch/i386/atomic_arch.h')
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/atomic_arch.h b/arch/i386/atomic_arch.h
index 6e67c4ce..2b1a0490 100644
--- a/arch/i386/atomic_arch.h
+++ b/arch/i386/atomic_arch.h
@@ -71,7 +71,7 @@ static inline void a_barrier()
__asm__ __volatile__( "" : : : "memory" );
-#define a_pause a_pause
+#define a_spin a_spin
static inline void a_spin()
__asm__ __volatile__( "pause" : : : "memory" );