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

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Message-ID: <84144f020705080521k6d75d9f8m33e25585735e4f7e@mail.gmail.com>
Date:	Tue, 8 May 2007 15:21:55 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Michael Tokarev" <mjt@....msk.ru>
Cc:	"Shani Moideen" <shani.moideen@...ro.com>, ebiederm@...ssion.com,
	linux-kernel@...r.kernel.org, kernel-janitors@...ts.osdl.org
Subject: Re: [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in kernel/kexec.c

Shani Moideen wrote:
> >                 ptr = kmap(page);
> > -               memset(ptr, 0, PAGE_SIZE);
> > +               clear_page(ptr);

On 5/8/07, Michael Tokarev <mjt@....msk.ru> 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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