1 #ifndef __ASM_GENERIC_GETORDER_H
2 #define __ASM_GENERIC_GETORDER_H
3 
4 #ifndef __ASSEMBLY__
5 
6 #include <linux/compiler.h>
7 
8 /* Pure 2^n version of get_order */
9 static inline __attribute_const__ int get_order(unsigned long size)
10 {
11 	int order;
12 
13 	size = (size - 1) >> (PAGE_SHIFT - 1);
14 	order = -1;
15 	do {
16 		size >>= 1;
17 		order++;
18 	} while (size);
19 	return order;
20 }
21 
22 #endif	/* __ASSEMBLY__ */
23 
24 #endif	/* __ASM_GENERIC_GETORDER_H */
25