patch-2.2.18 linux/include/asm-ppc/page.h

• Lines: 21
• Date: Sat Sep 2 19:33:24 2000
• Orig file: v2.2.17/include/asm-ppc/page.h
• Orig date: Sat Sep 9 18:42:50 2000

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/include/asm-ppc/page.h linux/include/asm-ppc/page.h
@@ -81,6 +81,20 @@
 #define MAP_PAGE_RESERVED	(1<<15)
 
 extern unsigned long get_zero_page_fast(void);
+
+extern __inline__ int get_order(unsigned long size)
+{
+        int order;
+
+        size = (size-1) >> (PAGE_SHIFT-1);
+        order = -1;
+        do {
+                size >>= 1;
+                order++;
+        } while (size);
+        return order;
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 #endif /* _PPC_PAGE_H */