Re: XFS hole punch races

To:	Jan Kara <jack@xxxxxxx>
Subject:	Re: XFS hole punch races
From:	Greg KH <greg@xxxxxxxxx>
Date:	Mon, 2 May 2016 16:44:32 -0700
Cc:	stable@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, Dave Chinner <david@xxxxxxxxxxxxx>
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On Tue, Mar 22, 2016 at 04:57:40PM +0100, Jan Kara wrote:
> Hi,
> 
> similarly to ext4 also XFS had races between hole punching and page faults
> which could result in data corruption. The fixes were merged in 4.1-rc1 but
> it might make sense to backport them to older stable releases given the
> nature of the issue.
> 
> Relevant fixes are:
> 
> de0e8c20ba3a65b0f15040aabbefdc1999876e6b
> 075a924d45cc69c75a35f20b4912b85aa98b180a
> e8e9ad42c1f1e1bfbe0e8c32c8cac02e9ebfb7ef
> 0f9160b444e4de33b65dfcd3b901358a3129461a
> 723cac48473358939759885a18e8df113ea96138
> ec56b1f1fdc69599963574ce94cc5693d535dd64

None of these apply to 3.14-stable, so I'm not going to worry about them
:)

thanks,

greg k-h

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