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Re: [PATCH 2/2] block: use DAX for partition table reads

From Ross Zwisler <ross.zwisler@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH 2/2] block: use DAX for partition table reads
Date 2016-01-29 20:30 +0100
Message-ID <qWmU2-7SX-1@gated-at.bofh.it> (permalink)
References <qWj06-517-39@gated-at.bofh.it> <qWj07-517-55@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Jan 29, 2016 at 07:18:46AM -0800, Dan Williams wrote:
> Avoid populating pagecache when the block device is in DAX mode.
> Otherwise these page cache entries collide with the fsync/msync
> implementation and break data durability guarantees.
> 
> Cc: Jan Kara <jack@suse.com>
> Cc: Jeff Moyer <jmoyer@redhat.com>
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Dave Chinner <david@fromorbit.com>
> Cc: Matthew Wilcox <willy@linux.intel.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Reported-by: Ross Zwisler <ross.zwisler@linux.intel.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>

This solves the problem for me, thanks!

Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com>

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Thread

[PATCH 2/2] block: use DAX for partition table reads Dan Williams <dan.j.williams@intel.com> - 2016-01-29 16:20 +0100
  Re: [PATCH 2/2] block: use DAX for partition table reads Jens Axboe <axboe@fb.com> - 2016-01-29 18:50 +0100
    Re: [PATCH 2/2] block: use DAX for partition table reads Dan Williams <dan.j.williams@intel.com> - 2016-01-29 19:00 +0100
  Re: [PATCH 2/2] block: use DAX for partition table reads Ross Zwisler <ross.zwisler@linux.intel.com> - 2016-01-29 20:30 +0100
  Re: [PATCH 2/2] block: use DAX for partition table reads Matthew Wilcox <willy@linux.intel.com> - 2016-01-29 23:50 +0100
  [PATCH v2] block: use DAX for partition table reads Dan Williams <dan.j.williams@intel.com> - 2016-01-30 01:40 +0100

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