Merge with Linux 2.4.0-test10.

1 files changed, 43 insertions, 0 deletions

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
new file mode 100644
index 000000000..a65546820
--- /dev/null
+++ b/include/asm-generic/pgtable.h
@@ -0,0 +1,43 @@
+#ifndef _ASM_GENERIC_PGTABLE_H
+#define _ASM_GENERIC_PGTABLE_H
+
+static inline int ptep_test_and_clear_young(pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	if (!pte_young(pte))
+		return 0;
+	set_pte(ptep, pte_mkold(pte));
+	return 1;
+}
+
+static inline int ptep_test_and_clear_dirty(pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	if (!pte_dirty(pte))
+		return 0;
+	set_pte(ptep, pte_mkclean(pte));
+	return 1;
+}
+
+static inline pte_t ptep_get_and_clear(pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	pte_clear(ptep);
+	return pte;
+}
+
+static inline void ptep_clear_wrprotect(pte_t *ptep)
+{
+	pte_t old_pte = *ptep;
+	set_pte(ptep, pte_wrprotect(old_pte));
+}
+
+static inline void ptep_mkdirty(pte_t *ptep)
+{
+	pte_t old_pte = *ptep;
+	set_pte(ptep, pte_mkdirty(old_pte));
+}
+
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
+
+#endif /* _ASM_GENERIC_PGTABLE_H */