Date: Mon, 14 Oct 2013 07:15:35 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Benny Halevy <bhalevy@primarydata.com>
Cc: "J. Bruce Fields" <bfields@redhat.com>, linux-nfs@vger.kernel.org,
        Boaz Harrosh <bharrosh@panasas.com>
Subject: Re: [PATCH RFC v0 10/49] pnfsd: use sbid hash table to map
 super_blocks to devid major identifiers
Message-ID: <20131014141535.GA32062@infradead.org>
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 <20131011195608.GA18634@infradead.org>
 <525A399C.5040405@primarydata.com>
 <20131013110820.GA31153@infradead.org>
 <525A95AE.7060008@primarydata.com>
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On Sun, Oct 13, 2013 at 03:44:30PM +0300, Benny Halevy wrote:
> As far as I can see, exofs doesn't actually doing that.
> Currently exofs_fill_super sets s_dev = 0;
> Boaz, did I miss anything?

Just removing that line should fix it, mount_nodev already takes care of
getting a proper s_dev through set_anon_super.  It'll also need to
switch .kill_sb to kill_anon_super just like the other filesystems using
mount_nodev.