patch-2.3.46 linux/include/asm-m68k/page.h

• Lines: 21
• Date: Mon Feb 14 15:34:21 2000
• Orig file: v2.3.45/linux/include/asm-m68k/page.h
• Orig date: Fri Jan 28 15:09:09 2000

diff -u --recursive --new-file v2.3.45/linux/include/asm-m68k/page.h linux/include/asm-m68k/page.h
@@ -97,6 +97,20 @@
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
 
+/* Pure 2^n version of get_order */
+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 /* !__ASSEMBLY__ */
 
 #include <asm/page_offset.h>