From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f173.google.com (mail-pf0-f173.google.com [209.85.192.173]) by kanga.kvack.org (Postfix) with ESMTP id 0EE996B007E for ; Thu, 17 Mar 2016 17:34:35 -0400 (EDT) Received: by mail-pf0-f173.google.com with SMTP id x3so136953233pfb.1 for ; Thu, 17 Mar 2016 14:34:35 -0700 (PDT) Received: from mail-pf0-x233.google.com (mail-pf0-x233.google.com. [2607:f8b0:400e:c00::233]) by mx.google.com with ESMTPS id vc15si6400695pab.8.2016.03.17.14.34.34 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Mar 2016 14:34:34 -0700 (PDT) Received: by mail-pf0-x233.google.com with SMTP id 4so6192951pfd.0 for ; Thu, 17 Mar 2016 14:34:34 -0700 (PDT) Date: Thu, 17 Mar 2016 14:34:23 -0700 (PDT) From: Hugh Dickins Subject: Re: [PATCH 1/1] ksm: introduce ksm_max_page_sharing per page deduplication limit In-Reply-To: Message-ID: References: <1447181081-30056-1-git-send-email-aarcange@redhat.com> <1447181081-30056-2-git-send-email-aarcange@redhat.com> <20160116174953.GU31137@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Andrea Arcangeli , Davidlohr Bueso , linux-mm@kvack.org, Petr Holasek , Arjan van de Ven , Mel Gorman , Hugh Dickins On Mon, 18 Jan 2016, Hugh Dickins wrote: > On Sat, 16 Jan 2016, Andrea Arcangeli wrote: > > Hello Hugh, > > > > Thanks a lot for reviewing this. > > And thanks for your thorough reply, though I take issue with some of it :) > [...] > > I'll think about it more. Andrew, please ignore my reservations about Andrea's KSM max sharing patch. The diversions I created (IPIs etc), and my rash promise to think about it more, are serving no purpose but to delay a fix to a real problem. Even if this fix is not quite what I dreamt of, it has the great commendation of being self-contained within ksm.c, affecting nothing else: so long as Andrea has time to support it, I think we're good with it. Let Mel or I come up with better when we've devised it: but I doubt that will be soon (I got no further on what else to do about the compaction-migration case). Hugh -- 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