patch-2.4.20 linux-2.4.20/include/asm-i386/pgtable.h

• Lines: 34
• Date: Thu Nov 28 15:53:15 2002
• Orig file: linux-2.4.19/include/asm-i386/pgtable.h
• Orig date: Fri Aug 2 17:39:45 2002

diff -urN linux-2.4.19/include/asm-i386/pgtable.h linux-2.4.20/include/asm-i386/pgtable.h
@@ -82,11 +82,19 @@
 	} while (0)
 #endif
 
-#ifndef CONFIG_X86_INVLPG
-#define __flush_tlb_one(addr) __flush_tlb()
+#define __flush_tlb_single(addr) \
+	__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
+
+#ifdef CONFIG_X86_INVLPG
+# define __flush_tlb_one(addr) __flush_tlb_single(addr)
 #else
-#define __flush_tlb_one(addr) \
-__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
+# define __flush_tlb_one(addr)						\
+	do {								\
+		if (cpu_has_pge)					\
+			__flush_tlb_single(addr);			\
+		else							\
+			__flush_tlb();					\
+	} while (0)
 #endif
 
 /*
@@ -347,6 +355,9 @@
 #define pte_to_swp_entry(pte)		((swp_entry_t) { (pte).pte_low })
 #define swp_entry_to_pte(x)		((pte_t) { (x).val })
 
+struct page;
+int change_page_attr(struct page *, int, pgprot_t prot);
+
 #endif /* !__ASSEMBLY__ */
 
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */