x86/pgtable: unify pagetable accessors, #2

change the pte_dirty/* inlines to the unified format. Non-NOP!

based on:

 Subject: x86/pgtable: unify pagetable accessors
 From: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

include/asm-x86/pgtable_32.h

@@ -105,15 +105,15 @@ extern unsigned long pg0[];
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-static inline int pte_dirty(pte_t pte)		{ return (pte).pte_low & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte)		{ return (pte).pte_low & _PAGE_ACCESSED; }
-static inline int pte_write(pte_t pte)		{ return (pte).pte_low & _PAGE_RW; }
-static inline int pte_huge(pte_t pte)		{ return (pte).pte_low & _PAGE_PSE; }
+static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
+static inline int pte_huge(pte_t pte)		{ return pte_val(pte) & _PAGE_PSE; }
 
 /*
  * The following only works if pte_present() is not true.
  */
-static inline int pte_file(pte_t pte)		{ return (pte).pte_low & _PAGE_FILE; }
+static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 
 static inline pte_t pte_mkclean(pte_t pte)	{ (pte).pte_low &= ~_PAGE_DIRTY; return pte; }
 static inline pte_t pte_mkold(pte_t pte)	{ (pte).pte_low &= ~_PAGE_ACCESSED; return pte; }