linux-kernel - Re: [PATCH] x86: reuse the boot-time mappings of fixed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 4 Sep 2009 09:33:55 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Xiao Guangrong <ericxiao.gr@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Jens Axboe <jens.axboe@...cle.com>,
	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86: reuse the boot-time mappings of fixed_addresses


* Jeremy Fitzhardinge <jeremy@...p.org> 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 from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/