Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c

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To: "Michael Tokarev" <[email protected]>
Subject: Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c
From: "Pekka Enberg" <[email protected]>
Date: Tue, 8 May 2007 15:21:55 +0300
Cc: "Shani Moideen" <[email protected]>, [email protected], [email protected], [email protected]
In-reply-to: <[email protected]>
References: <1178621444.3598.15.camel@shani-win> <[email protected]>
Sender: [email protected]

Shani Moideen wrote:

>                 ptr = kmap(page);
> -               memset(ptr, 0, PAGE_SIZE);
> +               clear_page(ptr);


On 5/8/07, Michael Tokarev <[email protected]> wrote:

I wonder if it's worth to invent kzmap() or something like that... ;)


I am counting 59 kmap + memset pairs in the kernel, so perhaps it is
worth it to reduce kernel text size.
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Follow-Ups:
- Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c
  - From: "Satyam Sharma" <[email protected]>

References:
- [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c
  - From: Shani Moideen <[email protected]>
- Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c
  - From: Michael Tokarev <[email protected]>

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