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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-s390
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-s390')
-rw-r--r--include/asm-s390/page.h16
1 files changed, 2 insertions, 14 deletions
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index 2be287b9df88..2430c561e021 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -111,20 +111,6 @@ static inline void copy_page(void *to, void *from)
111#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) 111#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
112#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE 112#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
113 113
114/* Pure 2^n version of get_order */
115extern __inline__ int get_order(unsigned long size)
116{
117 int order;
118
119 size = (size-1) >> (PAGE_SHIFT-1);
120 order = -1;
121 do {
122 size >>= 1;
123 order++;
124 } while (size);
125 return order;
126}
127
128/* 114/*
129 * These are used to make use of C type-checking.. 115 * These are used to make use of C type-checking..
130 */ 116 */
@@ -207,4 +193,6 @@ page_get_storage_key(unsigned long addr)
207 193
208#endif /* __KERNEL__ */ 194#endif /* __KERNEL__ */
209 195
196#include <asm-generic/page.h>
197
210#endif /* _S390_PAGE_H */ 198#endif /* _S390_PAGE_H */