[PATCH] x86: add an accessor function for getting the per-CPU gdt

Add an accessor function for getting the per-CPU gdt.  Callee must already
have the CPU.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index 9edd448..cf572d9 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -108,7 +108,7 @@
 		desc = (void *)desc + (seg & ~7);
 	} else {
 		/* Must disable preemption while reading the GDT. */
-		desc = (u32 *)&per_cpu(cpu_gdt_table, get_cpu());
+ 		desc = (u32 *)get_cpu_gdt_table(get_cpu());
 		desc = (void *)desc + (seg & ~7);
 	}