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[PATCH] mm: consolidate get_order

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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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Stephen Rothwell 2005-09-03 15:54:30 -07:00 • committed by Linus Torvalds
commit fd4fd5aac1
22 changed files with 69 additions and 312 deletions
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21
include/asm-v850/page.h
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@ -98,25 +98,6 @@ typedef unsigned long pgprot_t;
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
#ifndef __ASSEMBLY__
/* 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;
}
#endif /* !__ASSEMBLY__ */
/* No current v850 processor has virtual memory. */
#define __virt_to_phys(addr) (addr)
#define __phys_to_virt(addr) (addr)
@ -144,4 +125,6 @@ extern __inline__ int get_order (unsigned long size)
#endif /* KERNEL */
#include <asm-generic/page.h>
#endif /* __V850_PAGE_H__ */