From 688d3be815b1563b1484ce67702249a4a7a6314e Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Tue, 12 Jul 2011 13:35:57 +0200
Subject: percpu: Fixup __this_cpu_xchg* operations

Somehow we got into a situation where the __this_cpu_xchg() operations were
not defined in the same way as this_cpu_xchg() and friends. I had some build
failures under 32 bit that were addressed by these fixes.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/percpu.h | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

(limited to 'arch/x86/include/asm')

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index a0a9779084d1..3470c9d0ebba 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -388,12 +388,9 @@ do {									\
 #define __this_cpu_xor_1(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define __this_cpu_xor_2(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define __this_cpu_xor_4(pcp, val)	percpu_to_op("xor", (pcp), val)
-/*
- * Generic fallback operations for __this_cpu_xchg_[1-4] are okay and much
- * faster than an xchg with forced lock semantics.
- */
-#define __this_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
-#define __this_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
+#define __this_cpu_xchg_1(pcp, val)	percpu_xchg_op(pcp, val)
+#define __this_cpu_xchg_2(pcp, val)	percpu_xchg_op(pcp, val)
+#define __this_cpu_xchg_4(pcp, val)	percpu_xchg_op(pcp, val)
 
 #define this_cpu_read_1(pcp)		percpu_from_op("mov", (pcp), "m"(pcp))
 #define this_cpu_read_2(pcp)		percpu_from_op("mov", (pcp), "m"(pcp))
@@ -485,6 +482,8 @@ do {									\
 #define __this_cpu_or_8(pcp, val)	percpu_to_op("or", (pcp), val)
 #define __this_cpu_xor_8(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define __this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val)
+#define __this_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
+#define __this_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
 
 #define this_cpu_read_8(pcp)		percpu_from_op("mov", (pcp), "m"(pcp))
 #define this_cpu_write_8(pcp, val)	percpu_to_op("mov", (pcp), val)
-- 
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