From: Christoph Hellwig <hch@infradead.org>
To: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, Jan Kara <jack@suse.cz>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
linux-nvdimm@lists.01.org, Dave Chinner <david@fromorbit.com>,
stable@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 1/2] xfs: always use DAX if mount option is used
Date: Fri, 8 Sep 2017 00:20:28 -0700 [thread overview]
Message-ID: <20170908072027.GA27725@infradead.org> (raw)
In-Reply-To: <20170907210832.17969-2-ross.zwisler@linux.intel.com>
On Thu, Sep 07, 2017 at 03:08:31PM -0600, Ross Zwisler wrote:
> Before support for the per-inode DAX flag was disabled the XFS the code had
> an issue where the user couldn't reliably tell whether or not DAX was being
> used to service page faults and I/O when the DAX mount option was used. In
> this case each inode within the mounted filesystem started with S_DAX set
> due to the mount option, but it could be cleared if someone touched the
> individual inode flag.
Looks good, but can you please add a testcase to xfstests for this?
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2017-09-08 7:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-07 21:08 [PATCH 0/2] xfs: some DAX fixes Ross Zwisler
2017-09-07 21:08 ` [PATCH 1/2] xfs: always use DAX if mount option is used Ross Zwisler
2017-09-08 7:20 ` Christoph Hellwig [this message]
2017-09-08 15:28 ` Ross Zwisler
2017-09-07 21:08 ` [PATCH 2/2] xfs: validate bdev support for DAX inode flag Ross Zwisler
2017-09-08 7:21 ` Christoph Hellwig
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