X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fpgtable.h;h=de6d01e24dd03a23d43dcf64377a6a02666ebd83;hb=df3d80f5a5c74168be42788364d13cf6c83c7b9c;hp=670b706411b88c01c5a1785e467f387510ecfe2a;hpb=eedab661a51966c454e38c17266a531aa58b4a98;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 670b706411b..de6d01e24dd 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -297,8 +297,6 @@ ia64_phys_addr_valid (unsigned long addr)
 /*
  * The following have defined behavior only work if pte_present() is true.
  */
-#define pte_user(pte)		((pte_val(pte) & _PAGE_PL_MASK) == _PAGE_PL_3)
-#define pte_read(pte)		(((pte_val(pte) & _PAGE_AR_MASK) >> _PAGE_AR_SHIFT) < 6)
 #define pte_write(pte)	((unsigned) (((pte_val(pte) & _PAGE_AR_MASK) >> _PAGE_AR_SHIFT) - 2) <= 4)
 #define pte_exec(pte)		((pte_val(pte) & _PAGE_AR_RX) != 0)
 #define pte_dirty(pte)		((pte_val(pte) & _PAGE_D) != 0)
@@ -310,7 +308,6 @@ ia64_phys_addr_valid (unsigned long addr)
  */
 #define pte_wrprotect(pte)	(__pte(pte_val(pte) & ~_PAGE_AR_RW))
 #define pte_mkwrite(pte)	(__pte(pte_val(pte) | _PAGE_AR_RW))
-#define pte_mkexec(pte)		(__pte(pte_val(pte) | _PAGE_AR_RX))
 #define pte_mkold(pte)		(__pte(pte_val(pte) & ~_PAGE_A))
 #define pte_mkyoung(pte)	(__pte(pte_val(pte) | _PAGE_A))
 #define pte_mkclean(pte)	(__pte(pte_val(pte) & ~_PAGE_D))
@@ -398,22 +395,6 @@ ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t
 #endif
 }
 
-static inline int
-ptep_test_and_clear_dirty (struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
-{
-#ifdef CONFIG_SMP
-	if (!pte_dirty(*ptep))
-		return 0;
-	return test_and_clear_bit(_PAGE_D_BIT, ptep);
-#else
-	pte_t pte = *ptep;
-	if (!pte_dirty(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte));
-	return 1;
-#endif
-}
-
 static inline pte_t
 ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -533,16 +514,25 @@ extern void lazy_mmu_prot_update (pte_t pte);
  * daccess_bit in ivt.S).
  */
 #ifdef CONFIG_SMP
-# define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable)	\
-do {											\
-	if (__safely_writable) {							\
-		set_pte(__ptep, __entry);						\
-		flush_tlb_page(__vma, __addr);						\
-	}										\
-} while (0)
+# define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable) \
+({									\
+	int __changed = !pte_same(*(__ptep), __entry);			\
+	if (__changed && __safely_writable) {				\
+		set_pte(__ptep, __entry);				\
+		flush_tlb_page(__vma, __addr);				\
+	}								\
+	__changed;							\
+})
 #else
-# define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable)	\
-	ptep_establish(__vma, __addr, __ptep, __entry)
+# define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable) \
+({									\
+	int __changed = !pte_same(*(__ptep), __entry);			\
+	if (__changed) {						\
+		set_pte_at((__vma)->vm_mm, (__addr), __ptep, __entry);	\
+		flush_tlb_page(__vma, __addr);				\
+	}								\
+	__changed;							\
+})
 #endif
 
 #  ifdef CONFIG_VIRTUAL_MEM_MAP
@@ -584,7 +574,6 @@ do {											\
 #endif
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 #define __HAVE_ARCH_PTE_SAME