From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH -V3] Generic name to handle and open by handle syscalls
Date: Mon, 26 Apr 2010 10:56:39 -0400
Message-ID: <20100426145639.GA30714@infradead.org>
References: <1271960133-16414-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <DABA9B7F-548A-489D-ABED-689383E7E2DF@mit.edu> <F4F339E7-3C44-4DAB-9C89-5E665D3CDE24@sun.com> <20100424110812.40989988@notabene.brown> <20100426095658.GD23020@infradead.org> <20100426201633.0989254f@notabene.brown> <20100426102844.GA24515@infradead.org> <20100426211613.33dc6076@notabene.brown> <F99608D1-CF96-4440-82DE-806103B044BA@mit.edu>
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Cc: Neil Brown <neilb@suse.de>, Christoph Hellwig <hch@infradead.org>,
	Andreas Dilger <adilger@sun.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	viro@zeniv.linux.org.uk, corbet@lwn.net,
	linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com
To: Theodore Tso <tytso@MIT.EDU>
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On Mon, Apr 26, 2010 at 10:53:49AM -0400, Theodore Tso wrote:
> So XFS won't allow you to make a read-only snapshot of an XFS file system, and then mount it somewhere else?

You'll have to mount it with the nouuid option so that it doesn't end up
in the global uuid hash table.  Remember XFS on IRIX had these open by
handle and saner nfs integration things for a long time already.