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authorStephen Rothwell <sfr@canb.auug.org.au>2005-09-03 15:54:30 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:05:39 -0700
commitfd4fd5aac1282825195c6816ed40a2a6d42db5bf (patch)
tree5908cf4c88a7c9d69ea7bdc1c354d51b6ff47f86 /include/asm-um
parent28ae55c98e4d16eac9a05a8a259d7763ef3aeb18 (diff)
downloadop-kernel-dev-fd4fd5aac1282825195c6816ed40a2a6d42db5bf.zip
op-kernel-dev-fd4fd5aac1282825195c6816ed40a2a6d42db5bf.tar.gz
[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-um')
-rw-r--r--include/asm-um/page.h16
1 files changed, 2 insertions, 14 deletions
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
index f58aeda..bd850a2 100644
--- a/include/asm-um/page.h
+++ b/include/asm-um/page.h
@@ -116,24 +116,12 @@ extern void *to_virt(unsigned long phys);
#define pfn_valid(pfn) ((pfn) < max_mapnr)
#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))
-/* Pure 2^n version of get_order */
-static __inline__ int get_order(unsigned long size)
-{
- int order;
-
- size = (size-1) >> (PAGE_SHIFT-1);
- order = -1;
- do {
- size >>= 1;
- order++;
- } while (size);
- return order;
-}
-
extern struct page *arch_validate(struct page *page, int mask, int order);
#define HAVE_ARCH_VALIDATE
extern void arch_free_page(struct page *page, int order);
#define HAVE_ARCH_FREE_PAGE
+#include <asm-generic/page.h>
+
#endif
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