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authorStephen Rothwell <sfr@canb.auug.org.au>2005-09-03 18:54:30 -0400
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 03:05:39 -0400
commitfd4fd5aac1282825195c6816ed40a2a6d42db5bf (patch)
tree5908cf4c88a7c9d69ea7bdc1c354d51b6ff47f86 /include/asm-h8300/page.h
parent28ae55c98e4d16eac9a05a8a259d7763ef3aeb18 (diff)
[PATCH] mm: consolidate get_order
Someone mentioned that almost all the architectures used basically the same implementation of get_order. This patch consolidates them into asm-generic/page.h and includes that in the appropriate places. The exceptions are ia64 and ppc which have their own (presumably optimised) versions. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-h8300/page.h')
-rw-r--r--include/asm-h8300/page.h16
1 files changed, 2 insertions, 14 deletions
diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h
index e3b7960d445b..e8c02b8c2d99 100644
--- a/include/asm-h8300/page.h
+++ b/include/asm-h8300/page.h
@@ -54,20 +54,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
54/* to align the pointer to the (next) page boundary */ 54/* to align the pointer to the (next) page boundary */
55#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) 55#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
56 56
57/* Pure 2^n version of get_order */
58extern __inline__ int get_order(unsigned long size)
59{
60 int order;
61
62 size = (size-1) >> (PAGE_SHIFT-1);
63 order = -1;
64 do {
65 size >>= 1;
66 order++;
67 } while (size);
68 return order;
69}
70
71extern unsigned long memory_start; 57extern unsigned long memory_start;
72extern unsigned long memory_end; 58extern unsigned long memory_end;
73 59
@@ -101,4 +87,6 @@ extern unsigned long memory_end;
101 87
102#endif /* __KERNEL__ */ 88#endif /* __KERNEL__ */
103 89
90#include <asm-generic/page.h>
91
104#endif /* _H8300_PAGE_H */ 92#endif /* _H8300_PAGE_H */