linux-kernel - Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear

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Date:	Tue, 08 May 2007 12:18:42 +0100
From:	Andy Whitcroft <apw@...dowen.org>
To:	Shani Moideen <shani.moideen@...ro.com>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...ts.osdl.org
Subject: Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page()
 in mm/memory.c

Shani Moideen wrote:
> Hi,
> 
> Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in mm/memory.c.
> 
> Signed-off-by: Shani Moideen <shani.moideen@...ro.com>
> ----
> 
> thanks.
> 
> 
> diff --git a/mm/memory.c b/mm/memory.c
> index e7066e7..2780d07 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -1505,7 +1505,7 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
>                  * zeroes.
>                  */
>                 if (__copy_from_user_inatomic(kaddr, uaddr, PAGE_SIZE))
> -                       memset(kaddr, 0, PAGE_SIZE);
> +                       clear_page(kaddr);
>                 kunmap_atomic(kaddr, KM_USER0);
>                 flush_dcache_page(dst);
>                 return;
> 
> 

This looks to be whitespace dammaged?

-apw

use tabs not spaces
PATCH: -:64:
FILE: b/mm/memory.c:1508:
+                       clear_page(kaddr);$

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