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Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[mv-sheeva.git] / include / asm-generic / getorder.h
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 */