Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

[linux-2.6-omap-h63xx.git] / include / asm-ia64 / pgtable.h

diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 670b706411b88c01c5a1785e467f387510ecfe2a..de6d01e24dd03a23d43dcf64377a6a02666ebd83 100644 (file)
--- 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