[PATCH] vmalloc_fault() cleanup

Store the physical pgd address in a different variable than the virtual
address.

There's no real reason to only use 1 variable here, other than saving a
line of code.  But, the types really are different and we might as well
just spell that out explicitly.
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/mm/fault.c

@@ -513,12 +513,13 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		 * an interrupt in the middle of a task switch..
 		 */
 		int index = pgd_index(address);
+		unsigned long pgd_paddr;
 		pgd_t *pgd, *pgd_k;
 		pmd_t *pmd, *pmd_k;
 		pte_t *pte_k;
 
-		asm("movl %%cr3,%0":"=r" (pgd));
-		pgd = index + (pgd_t *)__va(pgd);
+		asm("movl %%cr3,%0":"=r" (pgd_paddr));
+		pgd = index + (pgd_t *)__va(pgd_paddr);
 		pgd_k = init_mm.pgd + index;
 
 		if (!pgd_present(*pgd_k))