locking/pvqspinlock/x86: Use LOCK_PREFIX in __pv_queued_spin_unlock() assembly code

[linux-2.6-microblaze.git] / arch / x86 / include / asm / qspinlock_paravirt.h

diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h
index 9ef5ee0..159622e 100644 (file)
--- a/arch/x86/include/asm/qspinlock_paravirt.h
+++ b/arch/x86/include/asm/qspinlock_paravirt.h
@@ -43,7 +43,7 @@ asm    (".pushsection .text;"
        "push  %rdx;"
        "mov   $0x1,%eax;"
        "xor   %edx,%edx;"
-       "lock cmpxchg %dl,(%rdi);"
+       LOCK_PREFIX "cmpxchg %dl,(%rdi);"
        "cmp   $0x1,%al;"
        "jne   .slowpath;"
        "pop   %rdx;"