aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJan Beulich <jbeulich@novell.com>2005-09-12 18:49:24 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 10:50:57 -0700
commita2d236b3ac8fcbbf1bae7d815294d258ba24e3f5 (patch)
tree233b4d6dc1b4ae39eb3c4c5db3591503cf90768d
parent1a426cb76443f5b0a021a9df57d3446d14763c21 (diff)
downloadlinux-linaro-a2d236b3ac8fcbbf1bae7d815294d258ba24e3f5.tar.gz
[PATCH] x86-64: Lose constraints on cmpxchg
While only cosmetic for x86-64, this adjusts the cmpxchg code appearantly inherited from i386 to use more generic constraints. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/asm-x86_64/system.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h
index d65381194bd..85348e02ad2 100644
--- a/include/asm-x86_64/system.h
+++ b/include/asm-x86_64/system.h
@@ -253,19 +253,19 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
case 2:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
: "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
+ : "r"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 4:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %k1,%2"
: "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
+ : "r"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
case 8:
__asm__ __volatile__(LOCK_PREFIX "cmpxchgq %1,%2"
: "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
+ : "r"(new), "m"(*__xg(ptr)), "0"(old)
: "memory");
return prev;
}