[PATCH] x86: ptep_clear optimization

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

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index f40593565173939c5755adda6bee419d90a24635..f86c1e549466a0809c02fecc750cb5627ed08027 100644 (file)
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -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)                     \
 ({                                                                     \