From: Christoph Hellwig Subject: Re: [PATCH v2 2/9] ext2: tell DAX the size of allocation holes Date: Sat, 10 Sep 2016 00:31:51 -0700 Message-ID: <20160910073151.GB5295@infradead.org> References: <20160823220419.11717-1-ross.zwisler@linux.intel.com> <20160823220419.11717-3-ross.zwisler@linux.intel.com> <20160825075728.GA11235@infradead.org> <20160826212934.GA11265@linux.intel.com> <20160829074116.GA16491@infradead.org> <20160829125741.cdnbb2uaditcmnw2@thunk.org> <20160909164808.GC18554@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Theodore Ts'o , Matthew Wilcox , "linux-nvdimm-y27Ovi1pjclAfugRpC6u6w@public.gmane.org" , Dave Chinner , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Christoph Hellwig , "linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" , Andreas Dilger , Alexander Viro , Jan Kara , "linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Andrew Morton To: Dan Williams Return-path: Content-Disposition: inline In-Reply-To: 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 Fri, Sep 09, 2016 at 03:34:43PM -0700, Dan Williams wrote: > I agree with you that continuing to touch ext2 is not a good idea, but > I'm not yet convinced that now is the time to go do dax-2.0 when we > haven't finished shipping dax-1.0. I've mentioned this before, but I'd like to repeat it. With all the work reqwuired in the file system I would prefer to drop DAX support in ext2 (and if people really cry for it reinstate the trivial old xip support).