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Re: [PATCH 1/2] xfs: always use DAX if mount option is used

From Christoph Hellwig <hch@infradead.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] xfs: always use DAX if mount option is used
Date 2017-09-08 09:30 +0200
Message-ID <unlTH-3Fp-1@gated-at.bofh.it> (permalink)
References <uncdH-5xq-9@gated-at.bofh.it> <uncdH-5xq-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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>

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Thread

[PATCH 1/2] xfs: always use DAX if mount option is used Ross Zwisler <ross.zwisler@linux.intel.com> - 2017-09-07 23:10 +0200
  Re: [PATCH 1/2] xfs: always use DAX if mount option is used Christoph Hellwig <hch@infradead.org> - 2017-09-08 09:30 +0200
    Re: [PATCH 1/2] xfs: always use DAX if mount option is used Ross Zwisler <ross.zwisler@linux.intel.com> - 2017-09-08 17:30 +0200

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