From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: "Theodore Ts'o" <tytso@mit.edu>, Jan Kara <jack@suse.cz>,
linux-kernel@vger.kernel.org
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
linux-ext4@vger.kernel.org, linux-nvdimm@lists.01.org
Subject: [PATCH v2 0/5] ext4: DAX data corruption fixes
Date: Mon, 11 Sep 2017 23:05:21 -0600 [thread overview]
Message-ID: <20170912050526.7627-1-ross.zwisler@linux.intel.com> (raw)
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(-)
--
2.9.5
next reply other threads:[~2017-09-12 5:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 5:05 Ross Zwisler [this message]
2017-09-12 5:05 ` [PATCH v2 1/5] ext4: prevent data corruption with inline data + DAX Ross Zwisler
2017-09-12 6:38 ` Jan Kara
2017-10-12 15:52 ` Theodore Ts'o
2017-09-12 5:05 ` [PATCH v2 2/5] ext4: prevent data corruption with journaling " Ross Zwisler
2017-09-12 6:41 ` Jan Kara
2017-10-12 15:55 ` Theodore Ts'o
2017-09-12 5:05 ` [PATCH v2 3/5] ext4: add sanity check for encryption " Ross Zwisler
2017-09-12 6:45 ` Jan Kara
2017-09-12 15:39 ` Ross Zwisler
2017-09-12 5:05 ` [PATCH v2 4/5] ext4: add ext4_should_use_dax() Ross Zwisler
2017-09-12 6:46 ` Jan Kara
2017-10-12 16:01 ` Theodore Ts'o
2017-09-12 5:05 ` [PATCH v2 5/5] ext4: remove duplicate extended attributes defs Ross Zwisler
2017-10-12 16:18 ` Theodore Ts'o
2017-09-29 17:37 ` [PATCH v2 0/5] ext4: DAX data corruption fixes Ross Zwisler
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170912050526.7627-1-ross.zwisler@linux.intel.com \
--to=ross.zwisler@linux.intel.com \
--cc=adilger.kernel@dilger.ca \
--cc=dan.j.williams@intel.com \
--cc=david@fromorbit.com \
--cc=hch@lst.de \
--cc=jack@suse.cz \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvdimm@lists.01.org \
--cc=tytso@mit.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®