x86: access_error API cleanup

access_error() already takes error_code as an argument, so there is
no need for an additional write flag.
Signed-off-by: NMichel Lespinasse <walken@google.com>
Acked-by: NRik van Riel <riel@redhat.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Acked-by: NWu Fengguang <fengguang.wu@intel.com>
Cc: Ying Han <yinghan@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: N"H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/x86/mm/fault.c

@@ -919,9 +919,9 @@ spurious_fault(unsigned long error_code, unsigned long address)
 int show_unhandled_signals = 1;
 
 static inline int
-access_error(unsigned long error_code, int write, struct vm_area_struct *vma)
+access_error(unsigned long error_code, struct vm_area_struct *vma)
 {
-	if (write) {
+	if (error_code & PF_WRITE) {
 		/* write, present and write, not present: */
 		if (unlikely(!(vma->vm_flags & VM_WRITE)))
 			return 1;
@@ -1114,7 +1114,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * we can handle it..
 	 */
 good_area:
-	if (unlikely(access_error(error_code, write, vma))) {
+	if (unlikely(access_error(error_code, vma))) {
 		bad_area_access_error(regs, error_code, address);
 		return;
 	}