Re: Prezeroing V2 [2/4]: add second parameter to clear_page() for all arches

From: Geert Uytterhoeven <geert_at_linux-m68k.org>
Date: 2005-01-01 21:24:43
On Thu, 23 Dec 2004, Christoph Lameter wrote:
> o Extend clear_page to take an order parameter for all architectures.

> Index: linux-2.6.9/include/asm-m68k/page.h
> ===================================================================
> --- linux-2.6.9.orig/include/asm-m68k/page.h	2004-10-18 14:55:36.000000000 -0700
> +++ linux-2.6.9/include/asm-m68k/page.h	2004-12-23 07:44:14.000000000 -0800
> @@ -50,7 +50,7 @@
>  		       );
>  }
> 
> -static inline void clear_page(void *page)
> +static inline void clear_page(void *page, int order)
>  {
>  	unsigned long tmp;
>  	unsigned long *sp = page;
> @@ -69,16 +69,16 @@
>  			     "dbra   %1,1b\n\t"
>  			     : "=a" (sp), "=d" (tmp)
>  			     : "a" (page), "0" (sp),
> -			       "1" ((PAGE_SIZE - 16) / 16 - 1));
> +			       "1" (((PAGE_SIZE<<(order)) - 16) / 16 - 1));
>  }
> 
>  #else
> -#define clear_page(page)	memset((page), 0, PAGE_SIZE)
> +#define clear_page(page, 0)	memset((page), 0, PAGE_SIZE << (order))
                            ^
			    order

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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Received on Sat Jan 1 05:25:42 2005

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