[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>
diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h
index e3b7960..e8c02b8 100644
--- a/include/asm-h8300/page.h
+++ b/include/asm-h8300/page.h
@@ -54,20 +54,6 @@
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-/* Pure 2^n version of get_order */
-extern __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 unsigned long memory_start;
extern unsigned long memory_end;
@@ -101,4 +87,6 @@
#endif /* __KERNEL__ */
+#include <asm-generic/page.h>
+
#endif /* _H8300_PAGE_H */