From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752811AbbCWTa1 (ORCPT ); Mon, 23 Mar 2015 15:30:27 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:42455 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752619AbbCWTaV (ORCPT ); Mon, 23 Mar 2015 15:30:21 -0400 Date: Mon, 23 Mar 2015 12:30:17 -0700 From: Christoph Hellwig To: Rik van Riel Cc: Boaz Harrosh , Matthew Wilcox , Andrew Morton , Dan Williams , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, axboe@kernel.dk, linux-nvdimm@ml01.01.org, Dave Hansen , linux-raid@vger.kernel.org, mgorman@suse.de, hch@infradead.org, linux-fsdevel@vger.kernel.org, "Michael S. Tsirkin" Subject: Re: [RFC PATCH 0/7] evacuate struct page from the block layer Message-ID: <20150323193017.GA14179@infradead.org> References: <20150316201640.33102.33761.stgit@dwillia2-desk3.amr.corp.intel.com> <20150318132650.3336261c58829f49a9af8675@linux-foundation.org> <20150319134313.GF4003@linux.intel.com> <550C490E.1080708@redhat.com> <550EE4FE.1070009@plexistor.com> <55102EEB.2090401@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55102EEB.2090401@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 23, 2015 at 11:19:07AM -0400, Rik van Riel wrote: > There are two things going on here: > > 1) You want to keep using struct page for now, while there are > subsystems that require it. This is perfectly legitimate. > > 2) Matthew and Dan are changing over some subsystems to no longer > require struct page. This is perfectly legitimate. > > I do not understand why either of you would have to object to what > the other is doing. There is room to keep using struct page until > the rest of the kernel no longer requires it. *nod* I'd really like to merge the struct page based pmem driver ASAP. We can then look into work that avoid the need for struct page, and I think Dan is doing some good work in that direction.