[PATCH for review] [50/145] i386: Minor fixes & cleanup to tlb flush

[Andi Kleen <ak@suse.de>]

r

(based on x86-64 changes)
- Add a proper memory clobber to invlpg
- Remove an unused extern

Signed-off-by: Andi Kleen <ak@suse.de>

---
 include/asm-i386/tlbflush.h |    4 +---
 1 files changed, 1 insertion(+), 3 deletions(-)

Index: linux/include/asm-i386/tlbflush.h
===================================================================
--- linux.orig/include/asm-i386/tlbflush.h
+++ linux/include/asm-i386/tlbflush.h
@@ -36,8 +36,6 @@
 			: "memory");					\
 	} while (0)
 
-extern unsigned long pgkern_mask;
-
 # define __flush_tlb_all()						\
 	do {								\
 		if (cpu_has_pge)					\
@@ -49,7 +47,7 @@ extern unsigned long pgkern_mask;
 #define cpu_has_invlpg	(boot_cpu_data.x86 > 3)
 
 #define __flush_tlb_single(addr) \
-	__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
+	__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory")
 
 #ifdef CONFIG_X86_INVLPG
 # define __flush_tlb_one(addr) __flush_tlb_single(addr)
-
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