Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755615AbXIRJ6w (ORCPT ); Tue, 18 Sep 2007 05:58:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753655AbXIRJ6q (ORCPT ); Tue, 18 Sep 2007 05:58:46 -0400 Received: from viefep18-int.chello.at ([213.46.255.22]:27383 "EHLO viefep33-int.chello.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753358AbXIRJ6p (ORCPT ); Tue, 18 Sep 2007 05:58:45 -0400 Date: Tue, 18 Sep 2007 11:58:36 +0200 From: Peter Zijlstra To: Daniel Phillips Cc: "Mike Snitzer" , "Christoph Lameter" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, dkegel@google.com, "David Miller" , "Nick Piggin" , "Wouter Verhelst" , "Evgeniy Polyakov" Subject: Re: [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC) Message-ID: <20070918115836.1394a051@twins> In-Reply-To: <200709172211.26493.phillips@phunq.net> References: <20070814142103.204771292@sgi.com> <200709171728.26180.phillips@phunq.net> <170fa0d20709172027g3b83d606k6a8e641f71848c3@mail.gmail.com> <200709172211.26493.phillips@phunq.net> X-Mailer: Claws Mail 3.0.0 (GTK+ 2.10.11; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 831 Lines: 20 On Mon, 17 Sep 2007 22:11:25 -0700 Daniel Phillips wrote: > > I've been using Avi Kivity's patch from some time ago: > > http://lkml.org/lkml/2004/7/26/68 > > Yes. Ddsnap includes a bit of code almost identical to that, which we wrote independently. Seems wild and crazy at first blush, doesn't it? But this approach has proved robust in practice, and is to my mind, obviously correct. I'm so not liking this :-( Can't we just run the user-space part as mlockall and extend netlink to work with PF_MEMALLOC where needed? I did something like that for iSCSI. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/