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author | Jeff Garzik <jgarzik@pobox.com> | 2005-09-08 05:43:49 -0400 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-08 05:43:49 -0400 |
commit | 1d6ae775d7a948c9575658eb41184fd2e506c0df (patch) | |
tree | 8128a28e89d82f13bb8e3a2160382240c66e2816 /include/asm-generic/page.h | |
parent | 739cdbf1d8f0739b80035b80d69d871e33749b86 (diff) | |
parent | caf39e87cc1182f7dae84eefc43ca14d54c78ef9 (diff) |
Merge /spare/repo/linux-2.6/
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 */ |