From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id 9ADD06B004F for ; Fri, 4 Sep 2009 03:34:06 -0400 (EDT) Date: Fri, 4 Sep 2009 09:33:55 +0200 From: Ingo Molnar Subject: Re: [PATCH] x86: reuse the boot-time mappings of fixed_addresses Message-ID: <20090904073355.GA20598@elte.hu> References: <4A90AADE.20307@gmail.com> <20090829110046.GA6812@elte.hu> <4A997088.60908@zytor.com> <20090831082632.GB15619@elte.hu> <4A9C6ADF.2020707@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A9C6ADF.2020707@goop.org> Sender: owner-linux-mm@kvack.org To: Jeremy Fitzhardinge Cc: "H. Peter Anvin" , Xiao Guangrong , Andrew Morton , Rusty Russell , Jens Axboe , Xiao Guangrong , LKML , linux-mm@kvack.org, x86@kernel.org, Thomas Gleixner List-ID: * Jeremy Fitzhardinge wrote: > On 08/31/09 01:26, Ingo Molnar wrote: > >>> I'm wondering, how much space do we save this way, on a typical bootup > >>> on a typical PC? > >>> > >>> > >> Not a huge lot... a few dozen pages. > >> > > I guess it's still worth doing - what do you think? > > > > It hardly seems worth it, but I guess it isn't much code. [...] Ok, i understood this as an Acked-by from you - lemme know if that's wrong ;-) > [...] Will having an apparent overlap of vmalloc and fixmap > spaces confuse anything? At most perhaps some debug tools - kcrash & co. Ingo -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org