[PATCH 2.6.19-rc1-mm1] espfix Use scaling addressing mode rather than shifting in PER_CPU

Use the x86 scaling addressing mode rather than shifting to
multiplying by 4 in PER_CPU().

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Stas Sergeev <[email protected]>
Cc: Zachary Amsden <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Cc: Jan Beulich <[email protected]>
Cc: Andi Kleen <[email protected]>

diff -r ea4549dd86a4 include/asm-i386/percpu.h
--- a/include/asm-i386/percpu.h	Tue Oct 10 16:36:02 2006 -0700
+++ b/include/asm-i386/percpu.h	Tue Oct 10 16:37:59 2006 -0700
@@ -19,8 +19,7 @@
 */
#ifdef CONFIG_SMP
#define PER_CPU(var, cpu) \
-	shll $2, cpu; \
-	movl __per_cpu_offset(cpu), cpu; \
+	movl __per_cpu_offset(,cpu,4), cpu;	\
	addl $per_cpu__/**/var, cpu;
#else /* ! SMP */
#define PER_CPU(var, cpu) \


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