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author | David S. Miller <davem@davemloft.net> | 2009-06-15 06:02:23 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2009-06-15 06:02:23 -0400 |
commit | 9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch) | |
tree | 8d104ec2a459346b99413b0b77421ca7b9936c1a /include/asm-generic/getorder.h | |
parent | ca44d6e60f9de26281fda203f58b570e1748c015 (diff) | |
parent | 45e3e1935e2857c54783291107d33323b3ef33c8 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.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 */ | ||