[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>

1 files changed, 2 insertions, 13 deletions

diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h
index bbf17bd39385..c99c478c482f 100644
--- a/include/asm-cris/page.h
+++ b/include/asm-cris/page.h
@@ -70,19 +70,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #ifndef __ASSEMBLY__
 
-/* 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;
-}
 #endif /* __ASSEMBLY__ */
 
 #define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_EXEC | \
@@ -90,5 +77,7 @@ static inline int get_order(unsigned long size)
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/page.h>
+
 #endif /* _CRIS_PAGE_H */