VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)

[linux-2.6.git] / include / asm-x86_64 / pgtable.h

diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index 37ebbad..059ba4a 100644 (file)
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -172,7 +172,7 @@ static inline void set_pml4(pml4_t *dst, pml4_t val)
 #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
 #define __PAGE_KERNEL \
        (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_NX)
-#define __PAGE_KERNEL_EXECUTABLE \
+#define __PAGE_KERNEL_EXEC \
        (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
 #define __PAGE_KERNEL_NOCACHE \
        (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_PCD | _PAGE_ACCESSED | _PAGE_NX)
@@ -188,7 +188,7 @@ static inline void set_pml4(pml4_t *dst, pml4_t val)
 #define MAKE_GLOBAL(x) __pgprot((x) | _PAGE_GLOBAL)
 
 #define PAGE_KERNEL MAKE_GLOBAL(__PAGE_KERNEL)
-#define PAGE_KERNEL_EXECUTABLE MAKE_GLOBAL(__PAGE_KERNEL_EXECUTABLE)
+#define PAGE_KERNEL_EXEC MAKE_GLOBAL(__PAGE_KERNEL_EXEC)
 #define PAGE_KERNEL_RO MAKE_GLOBAL(__PAGE_KERNEL_RO)
 #define PAGE_KERNEL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_NOCACHE)
 #define PAGE_KERNEL_VSYSCALL MAKE_GLOBAL(__PAGE_KERNEL_VSYSCALL)
@@ -262,8 +262,21 @@ extern inline pte_t pte_mkexec(pte_t pte)  { set_pte(&pte, __pte(pte_val(pte) | _
 extern inline pte_t pte_mkdirty(pte_t pte)     { set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
 extern inline pte_t pte_mkyoung(pte_t pte)     { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)     { set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; }
-static inline  int ptep_test_and_clear_dirty(pte_t *ptep)      { return test_and_clear_bit(_PAGE_BIT_DIRTY, ptep); }
-static inline  int ptep_test_and_clear_young(pte_t *ptep)      { return test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep); }
+
+static inline int ptep_test_and_clear_dirty(pte_t *ptep)
+{
+       if (!pte_dirty(*ptep))
+               return 0;
+       return test_and_clear_bit(_PAGE_BIT_DIRTY, ptep);
+}
+
+static inline int ptep_test_and_clear_young(pte_t *ptep)
+{
+       if (!pte_young(*ptep))
+               return 0;
+       return test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep);
+}
+
 static inline void ptep_set_wrprotect(pte_t *ptep)             { clear_bit(_PAGE_BIT_RW, ptep); }
 static inline void ptep_mkdirty(pte_t *ptep)                   { set_bit(_PAGE_BIT_DIRTY, ptep); }