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authorDavid S. Miller <davem@davemloft.net>2009-06-15 06:02:23 -0400
committerDavid S. Miller <davem@davemloft.net>2009-06-15 06:02:23 -0400
commit9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch)
tree8d104ec2a459346b99413b0b77421ca7b9936c1a /include/asm-generic/getorder.h
parentca44d6e60f9de26281fda203f58b570e1748c015 (diff)
parent45e3e1935e2857c54783291107d33323b3ef33c8 (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.h24
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 */
9static 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 */