Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / asm-generic / pgtable.h

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 1f4ec7b..c2059a3 100644 (file)
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -8,7 +8,7 @@
  *  - update the page tables
  *  - inform the TLB about the new one
  *
- * We hold the mm semaphore for reading and vma->vm_mm->page_table_lock.
+ * We hold the mm semaphore for reading, and the pte lock.
  *
  * Note: the old pte is known to not be writable, so we don't need to
  * worry about dirty bits etc getting lost.
@@ -101,6 +101,22 @@ do {                                                                         \
 })
 #endif
 
+#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
+#define ptep_get_and_clear_full(__mm, __address, __ptep, __full)       \
+({                                                                     \
+       pte_t __pte;                                                    \
+       __pte = ptep_get_and_clear((__mm), (__address), (__ptep));      \
+       __pte;                                                          \
+})
+#endif
+
+#ifndef __HAVE_ARCH_PTE_CLEAR_FULL
+#define pte_clear_full(__mm, __address, __ptep, __full)                        \
+do {                                                                   \
+       pte_clear((__mm), (__address), (__ptep));                       \
+} while (0)
+#endif
+
 #ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH
 #define ptep_clear_flush(__vma, __address, __ptep)                     \
 ({                                                                     \
@@ -112,6 +128,7 @@ do {                                                                          \
 #endif
 
 #ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT
+struct mm_struct;
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
 {
        pte_t old_pte = *ptep;
@@ -125,6 +142,9 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 
 #ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
 #define page_test_and_clear_dirty(page) (0)
+#define pte_maybe_dirty(pte)           pte_dirty(pte)
+#else
+#define pte_maybe_dirty(pte)           (1)
 #endif
 
 #ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
@@ -139,6 +159,10 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 #define lazy_mmu_prot_update(pte)      do { } while (0)
 #endif
 
+#ifndef __HAVE_ARCH_MOVE_PTE
+#define move_pte(pte, prot, old_addr, new_addr)        (pte)
+#endif
+
 /*
  * When walking page tables, get the address of the next boundary,
  * or the end address of the range if that comes earlier.  Although no