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From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>, xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: don't hand out pNFS layouts for reflink inodes
Date: Wed, 30 Mar 2016 19:26:34 +0200	[thread overview]
Message-ID: <20160330172634.GA22951@lst.de> (raw)
In-Reply-To: <20160330000842.GD5822@birch.djwong.org>

On Tue, Mar 29, 2016 at 05:08:42PM -0700, Darrick J. Wong wrote:
> > Btw, we'll need something similar to prevent swapfiles which just use
> > ->bmap, but unfortunately swap just checks for the existences of method,
> > so I'll probably have to do some VFS changes to properly support that.
> 
> Yes, please.  ocfs2 will gladly let you call swapon on a reflinked file,
> and totally fails to CoW it properly. :)

Ouch.  Time to add a test for that to xfstests..

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  reply	other threads:[~2016-03-30 17:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-02 16:34 [PATCH] xfs: don't hand out pNFS layouts for reflink inodes Christoph Hellwig
2016-03-28 19:51 ` Darrick J. Wong
2016-03-29  7:21   ` Christoph Hellwig
2016-03-30  0:08     ` Darrick J. Wong
2016-03-30 17:26       ` Christoph Hellwig [this message]
2016-03-30 17:40         ` Darrick J. Wong

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