From dd9ddbca46114ee9e030779fae337bb4e506151e Mon Sep 17 00:00:00 2001 From: Stefan Lankes Date: Thu, 21 Jul 2011 19:15:48 +0200 Subject: [PATCH] add memory barrier --- arch/x86/include/asm/atomic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index c3407fee..47e81ac4 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -88,7 +88,7 @@ inline static int32_t atomic_int32_test_and_set(atomic_int32_t* d, int32_t ret) inline static int32_t atomic_int32_add(atomic_int32_t *d, int32_t i) { int32_t res = i; - asm volatile(LOCK "xaddl %0, %1" : "=r"(i) : "m"(d->counter), "0"(i)); + asm volatile(LOCK "xaddl %0, %1" : "=r"(i) : "m"(d->counter), "0"(i) : "memory"); return res+i; }