patch-2.4.0-test6 linux/include/asm-m68k/page.h

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diff -u --recursive --new-file v2.4.0-test5/linux/include/asm-m68k/page.h linux/include/asm-m68k/page.h
@@ -160,6 +160,8 @@
 #endif	/* CONFIG_SUN3 */
 
 #define MAP_NR(addr)		(((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
+#define virt_to_page(kaddr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
+#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
 #ifndef CONFIG_SUN3
 #define BUG() do { \
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