From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx194.postini.com [74.125.245.194]) by kanga.kvack.org (Postfix) with SMTP id 0ECAE6B0005 for ; Thu, 28 Mar 2013 13:36:21 -0400 (EDT) MIME-Version: 1.0 Message-ID: <125abdf8-0af9-447b-8782-68acf1c9c229@default> Date: Thu, 28 Mar 2013 10:35:52 -0700 (PDT) From: Dan Magenheimer Subject: RE: [RFC] mm: remove swapcache page early References: <1364350932-12853-1-git-send-email-minchan@kernel.org> <433aaa17-7547-4e39-b472-7060ee15e85f@default> In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: Hugh Dickins Cc: Minchan Kim , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Seth Jennings , Nitin Gupta , Konrad Rzeszutek Wilk , Shaohua Li , Kamezawa Hiroyuki , Bob Liu > From: Hugh Dickins [mailto:hughd@google.com] > Subject: RE: [RFC] mm: remove swapcache page early >=20 > On Wed, 27 Mar 2013, Dan Magenheimer wrote: > > > From: Hugh Dickins [mailto:hughd@google.com] > > > Subject: Re: [RFC] mm: remove swapcache page early > > > > > The issue you are raising > > here is (2). You may not know that (2) has recently been solved > > in frontswap, at least for zcache. See frontswap_exclusive_gets_enable= d. > > If this is enabled (and it is for zcache but not yet for zswap), > > what you suggest (SetPageDirty) is what happens. >=20 > Ah, and I have a dim, perhaps mistaken, memory that I gave you > input on that before, suggesting the SetPageDirty. Good, sounds > like the solution is already in place, if not actually activated. >=20 > Thanks, must dash, > Hugh Hi Hugh -- Credit where it is due... Yes, I do recall now that the idea was originally yours. It went on a to-do list where I eventually tried it and it worked... I'm sorry I had forgotten and neglected to give you credit! (BTW, it is activated for zcache in 3.9.) Thanks, Dan -- 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