From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Sat, 15 Aug 2015 11:01:29 +0200 From: Christoph Hellwig Subject: Re: [RFC PATCH 0/7] 'struct page' driver for persistent memory Message-ID: <20150815090129.GD21033@lst.de> References: <20150813031253.36913.29580.stgit@otcpl-skl-sds-2.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150813031253.36913.29580.stgit@otcpl-skl-sds-2.jf.intel.com> Sender: owner-linux-mm@kvack.org To: Dan Williams Cc: linux-kernel@vger.kernel.org, boaz@plexistor.com, riel@redhat.com, linux-nvdimm@lists.01.org, Dave Hansen , david@fromorbit.com, mingo@kernel.org, linux-mm@kvack.org, Ingo Molnar , mgorman@suse.de, "H. Peter Anvin" , ross.zwisler@linux.intel.com, torvalds@linux-foundation.org, hch@lst.de List-ID: Hi Dan, based on the issues with the physiscal address S/G lists I suspect we will need this page hotplugging code. Any chance we could side step the issue of storing the page structs on the actual pmem for the first round so that we can an initial version into 4.3? I'll help with the max_pfn audit and testing with my WIP block driver that does I/O from pmem. -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752542AbbHOJBc (ORCPT ); Sat, 15 Aug 2015 05:01:32 -0400 Received: from verein.lst.de ([213.95.11.211]:55837 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751896AbbHOJBb (ORCPT ); Sat, 15 Aug 2015 05:01:31 -0400 Date: Sat, 15 Aug 2015 11:01:29 +0200 From: Christoph Hellwig To: Dan Williams Cc: linux-kernel@vger.kernel.org, boaz@plexistor.com, riel@redhat.com, linux-nvdimm@ml01.01.org, Dave Hansen , david@fromorbit.com, mingo@kernel.org, linux-mm@kvack.org, Ingo Molnar , mgorman@suse.de, "H. Peter Anvin" , ross.zwisler@linux.intel.com, torvalds@linux-foundation.org, hch@lst.de Subject: Re: [RFC PATCH 0/7] 'struct page' driver for persistent memory Message-ID: <20150815090129.GD21033@lst.de> References: <20150813031253.36913.29580.stgit@otcpl-skl-sds-2.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150813031253.36913.29580.stgit@otcpl-skl-sds-2.jf.intel.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Dan, based on the issues with the physiscal address S/G lists I suspect we will need this page hotplugging code. Any chance we could side step the issue of storing the page structs on the actual pmem for the first round so that we can an initial version into 4.3? I'll help with the max_pfn audit and testing with my WIP block driver that does I/O from pmem.