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| author |   Stephen Rothwell <sfr@canb.auug.org.au> | 2005-09-03 15:54:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:05:39 -0700 |
| commit | fd4fd5aac1282825195c6816ed40a2a6d42db5bf (patch) | |
| tree | 5908cf4c88a7c9d69ea7bdc1c354d51b6ff47f86 /include/asm-um | |
| parent | [PATCH] sparsemem extreme: hotplug preparation (diff) | |
| download | linux-dev-fd4fd5aac1282825195c6816ed40a2a6d42db5bf.tar.xz linux-dev-fd4fd5aac1282825195c6816ed40a2a6d42db5bf.zip | |
[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.h | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/include/asm-um/page.h b/include/asm-um/page.h index f58aedadeb4e..bd850a249183 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 |