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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2012-02-19 06:14:24 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2012-02-19 06:14:24 +0000 |
| commit | 6fafeb146e9efd59140ea58cebd7dd38ae9a6379 (patch) | |
| tree | 7db89ba6a28932514b105d620bba4884ec332ec3 /libdde_linux26/contrib/include/asm-generic/page.h | |
| parent | 38c2c2458e3f4ecb329ff35621806252aac209b9 (diff) | |
| parent | 8df772b3c665e663f6f9d2a70f9c691590bd3f91 (diff) | |
Merge branch 'dde' into upstream-merged
Diffstat (limited to 'libdde_linux26/contrib/include/asm-generic/page.h')
| -rw-r--r-- | libdde_linux26/contrib/include/asm-generic/page.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/include/asm-generic/page.h b/libdde_linux26/contrib/include/asm-generic/page.h new file mode 100644 index 00000000..14db733b --- /dev/null +++ b/libdde_linux26/contrib/include/asm-generic/page.h @@ -0,0 +1,24 @@ +#ifndef _ASM_GENERIC_PAGE_H +#define _ASM_GENERIC_PAGE_H + +#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 /* _ASM_GENERIC_PAGE_H */ |
