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author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
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committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
commit | d344c5e0856ad03278d8700b503762dbc8b86e12 (patch) | |
tree | a6d893a643470a3c2580a58f3228a55fa1fd1d82 /include/asm-generic/page.h | |
parent | 010988e888a0abbe7118635c1b33d049caae6b29 (diff) | |
parent | 87fc767b832ef5a681a0ff9d203c3289bc3be2bf (diff) |
Manual merge with Linus
Diffstat (limited to 'include/asm-generic/page.h')
-rw-r--r-- | include/asm-generic/page.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h new file mode 100644 index 00000000000..a96b5d986b6 --- /dev/null +++ b/include/asm-generic/page.h @@ -0,0 +1,26 @@ +#ifndef _ASM_GENERIC_PAGE_H +#define _ASM_GENERIC_PAGE_H + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + +#include <linux/compiler.h> + +/* Pure 2^n version of get_order */ +static __inline__ __attribute_const__ 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__ */ +#endif /* __KERNEL__ */ + +#endif /* _ASM_GENERIC_PAGE_H */ |