Re: [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()

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To: Dan Williams <dan.j.williams@xxxxxxxxx>
Subject: Re: [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()
From: Christoph Hellwig <hch@xxxxxx>
Date: Mon, 19 Mar 2018 20:45:13 +0100
Cc: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>, linux-nvdimm <linux-nvdimm@xxxxxxxxxxxx>, Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, linux-xfs <linux-xfs@xxxxxxxxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <CAPcyv4hsLSR=eG8=yLtOhrOaUjqjV5S8pwwmP3oOLrknWQS6Mg@mail.gmail.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Mon, Mar 19, 2018 at 10:57:55AM -0700, Dan Williams wrote:
> I don't see anything to adapt with respect to mmap locks since reflink
> and dax are mutually exclusive.

For now.  I'll change that pretty soon.

Follow-Ups:
- Re: [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()
  - From: Dan Williams

References:
- [PATCH v6 00/15] dax: fix dma vs truncate/hole-punch
  - From: Dan Williams
- [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()
  - From: Dan Williams
- Re: [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()
  - From: Darrick J. Wong
- Re: [PATCH v6 12/15] xfs: require mmap lock for xfs_break_layouts()
  - From: Dan Williams

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