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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-parisc/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-parisc/page.h')
-rw-r--r--include/asm-parisc/page.h16
1 files changed, 2 insertions, 14 deletions
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 4a12692f94b4..44eae9f8274d 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -74,20 +74,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
74#define __pgd(x) ((pgd_t) { (x) } ) 74#define __pgd(x) ((pgd_t) { (x) } )
75#define __pgprot(x) ((pgprot_t) { (x) } ) 75#define __pgprot(x) ((pgprot_t) { (x) } )
76 76
77/* Pure 2^n version of get_order */
78extern __inline__ int get_order(unsigned long size)
79{
80 int order;
81
82 size = (size-1) >> (PAGE_SHIFT-1);
83 order = -1;
84 do {
85 size >>= 1;
86 order++;
87 } while (size);
88 return order;
89}
90
91typedef struct __physmem_range { 77typedef struct __physmem_range {
92 unsigned long start_pfn; 78 unsigned long start_pfn;
93 unsigned long pages; /* PAGE_SIZE pages */ 79 unsigned long pages; /* PAGE_SIZE pages */
@@ -159,4 +145,6 @@ extern int npmem_ranges;
159 145
160#endif /* __KERNEL__ */ 146#endif /* __KERNEL__ */
161 147
148#include <asm-generic/page.h>
149
162#endif /* _PARISC_PAGE_H */ 150#endif /* _PARISC_PAGE_H */