From: Ross Zwisler Subject: Re: [PATCH 0/4 v4] mm,dax: Fix data corruption due to mmap inconsistency Date: Wed, 10 May 2017 11:27:55 -0600 Message-ID: <20170510172755.GA18283@linux.intel.com> References: <20170510085419.27601-1-jack@suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jan Kara Return-path: Content-Disposition: inline In-Reply-To: <20170510085419.27601-1-jack-AlSwsSmVLrQ@public.gmane.org> 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, May 10, 2017 at 10:54:15AM +0200, Jan Kara wrote: > Hello, > > this series fixes data corruption that can happen for DAX mounts when > page faults race with write(2) and as a result page tables get out of sync > with block mappings in the filesystem and thus data seen through mmap is > different from data seen through read(2). > > The series passes testing with t_mmap_stale test program from Ross and also > other mmap related tests on DAX filesystem. > > Andrew, can you please merge these patches? Thanks! > > Changes since v3: > * Rebased on top of current Linus' tree due to non-trivial conflicts with > added tracepoint Cool, the merge update looks correct to me.