[PATCH 3.1-rc2] x86: fix mm/fault.c build

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>

arch/x86/mm/fault.c needs to include asm/vsyscall.h to fix a
build error:

arch/x86/mm/fault.c: In function '__bad_area_nosemaphore':
arch/x86/mm/fault.c:728: error: 'VSYSCALL_START' undeclared (first use in this function)

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
---
 arch/x86/mm/fault.c |    1 +
 1 file changed, 1 insertion(+)

--- lnx-31-rc2.orig/arch/x86/mm/fault.c
+++ lnx-31-rc2/arch/x86/mm/fault.c
@@ -17,6 +17,7 @@
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
 #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
+#include <asm/vsyscall.h>
 
 /*
  * Page fault error code bits:
--
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