From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id A1F376B002D for ; Fri, 4 Nov 2011 04:49:10 -0400 (EDT) Message-Id: <4EB3B52E020000780005EF43@nat28.tlf.novell.com> Date: Fri, 04 Nov 2011 08:49:34 +0000 From: "Jan Beulich" Subject: Re: [GIT PULL] mm: frontswap (for 3.2 window) References: <4EB2D427020000780005ED64@nat28.tlf.novell.com> <20111103175410.b15efb8c.akpm@linux-foundation.org> In-Reply-To: <20111103175410.b15efb8c.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Neo Jia , levinsasha928@gmail.com, JeremyFitzhardinge , linux-mm@kvack.org, Linus Torvalds , Dave Hansen , Seth Jennings , Jonathan Corbet , Chris Mason , Dan Magenheimer , Konrad Wilk , ngupta@vflare.org, LKML >>> On 04.11.11 at 01:54, Andrew Morton wrote: > On Thu, 03 Nov 2011 16:49:27 +0000 "Jan Beulich" = wrote: >=20 >> >>> On 27.10.11 at 20:52, Dan Magenheimer = wrote: >> > Hi Linus -- >> >=20 >> > Frontswap now has FOUR users: Two already merged in-tree (zcache >> > and Xen) and two still in development but in public git trees >> > (RAMster and KVM). Frontswap is part 2 of 2 of the core kernel >> > changes required to support transcendent memory; part 1 was cleancache= >> > which you merged at 3.0 (and which now has FIVE users). >> >=20 >> > Frontswap patches have been in linux-next since June 3 (with zero >> > changes since Sep 22). First posted to lkml in June 2009, = frontswap=20 >> > is now at version 11 and has incorporated feedback from a wide range >> > of kernel developers. For a good overview, see >> > http://lwn.net/Articles/454795. >> > If further rationale is needed, please see the end of this email >> > for more info. >> >=20 >> > SO... Please pull: >> >=20 >> > git://oss.oracle.com/git/djm/tmem.git #tmem >> >=20 >> >... >> > Linux kernel distros incorporating frontswap: >> > - Oracle UEK 2.6.39 Beta: >> > http://oss.oracle.com/git/?p=3Dlinux-2.6-unbreakable-beta.git;a=3Ds= ummary=20 >> > - OpenSuSE since 11.2 (2009) [see mm/tmem-xen.c] >> > http://kernel.opensuse.org/cgit/kernel/=20 >>=20 >> I've been away so I am too far behind to read this entire >> very long thread, but wanted to confirm that we've been >> carrying an earlier version of this code as indicated above >> and it would simplify our kernel maintenance if frontswap >> got merged. So please count me as supporting frontswap. >=20 > Are you able to tell use *why* you're carrying it, and what benefit it > is providing to your users? Because we're supporting/using Xen, where this (within the general tmem picture) allows for better overall memory utilization. Jan -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org