From: Ross Zwisler Subject: Re: [PATCH 0/11] ext4: Convert ext4 DAX IO to iomap framework Date: Tue, 1 Nov 2016 16:45:50 -0600 Message-ID: <20161101224550.GA2314@linux.intel.com> References: <1478034381-19037-1-git-send-email-jack@suse.cz> <20161101221235.GB9920@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Ted Tso , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jan Kara , linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org To: Dave Chinner Return-path: Content-Disposition: inline In-Reply-To: <20161101221235.GB9920@dastard> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" List-Id: linux-ext4.vger.kernel.org On Wed, Nov 02, 2016 at 09:12:35AM +1100, Dave Chinner wrote: > On Tue, Nov 01, 2016 at 10:06:10PM +0100, Jan Kara wrote: > > Hello, > > > > this patch set converts ext4 DAX IO paths to the new iomap framework and > > removes the old bh-based DAX functions. As a result ext4 gains PMD page > > fault support, also some other minor bugs get fixed. The patch set is based > > on Ross' DAX PMD page fault support series [1]. It passes xfstests both in > > DAX and non-DAX mode. > > > > The question is how shall we merge this. If Dave is pulling PMD patches through > > XFS tree, then these patches could go there as well (chances for conflicts > > with other ext4 stuff are relatively low) or Dave could just export a stable > > branch with PMD series which Ted would just pull... > > I plan to grab Ross's PMD series in the next couple of days and I'll > push it out as a stable topic branch once I've sanity tested it. I > don't really want to take a big chunk of ext4 stuff through the XFS > tree if it can be avoided.... Yea, we also need to figure out how to get Jan's "dax: Clear dirty bits after flushing caches" set merged, which is mostly MM stuff and I think will go through akpm's tree? That set is also based on my PMD stuff.