diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 20:55:21 -0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 20:55:21 -0400 |
| commit | bbb20089a3275a19e475dbc21320c3742e3ca423 (patch) | |
| tree | 216fdc1cbef450ca688135c5b8969169482d9a48 /include/asm-generic/getorder.h | |
| parent | 3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff) | |
| parent | 657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff) | |
Merge branch 'dmaengine' into async-tx-next
Conflicts:
crypto/async_tx/async_xor.c
drivers/dma/ioat/dma_v2.h
drivers/dma/ioat/pci.c
drivers/md/raid5.c
Diffstat (limited to 'include/asm-generic/getorder.h')
| -rw-r--r-- | include/asm-generic/getorder.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h new file mode 100644 index 000000000000..67e7245dc9b3 --- /dev/null +++ b/include/asm-generic/getorder.h | |||
| @@ -0,0 +1,24 @@ | |||
| 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 */ | ||
