From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ross Zwisler Subject: Re: [PATCH v2 0/5] ext4: DAX data corruption fixes Date: Fri, 29 Sep 2017 11:37:52 -0600 Message-ID: <20170929173752.GA6155@linux.intel.com> References: <20170912050526.7627-1-ross.zwisler@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Jan Kara , linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, Dave Chinner , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andreas Dilger , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig To: Theodore Ts'o Return-path: Content-Disposition: inline In-Reply-To: <20170912050526.7627-1-ross.zwisler-VuQAYsv1563Yd54FQh9/CA@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 Mon, Sep 11, 2017 at 11:05:21PM -0600, Ross Zwisler wrote: > This series prevents a pair of data corruptions with ext4 + DAX. The first > such corruption happens when combining the inline data feature with DAX, > and the second happens when combining data journaling with DAX. > > Both can be reliably reproduced with the fstests that I have posted here: > > https://patchwork.kernel.org/patch/9948377/ > https://patchwork.kernel.org/patch/9948381/ > > My opinion is that the first three patches in this series should be applied > to the v4.14 RC series and backported to stable. The last two patches in > this series are just cleanup and can probably wait until v4.15. > > Ross Zwisler (5): > ext4: prevent data corruption with inline data + DAX > ext4: prevent data corruption with journaling + DAX > ext4: add sanity check for encryption + DAX > ext4: add ext4_should_use_dax() > ext4: remove duplicate extended attributes defs > > fs/ext4/ext4.h | 37 ------------------------------------- > fs/ext4/inline.c | 10 ---------- > fs/ext4/inode.c | 24 ++++++++++++++++-------- > fs/ext4/ioctl.c | 16 +++++++++++++--- > fs/ext4/super.c | 8 ++++++++ > 5 files changed, 37 insertions(+), 58 deletions(-) Hey Ted, I just wanted to ping this series, and see if at least the data corruption fixes were headed for v4.14? I don't think these have been merged into any of the ext4 branches yet. Thanks, - Ross