From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: vfsmount lock issues on very large ppc64 box
Date: Mon, 18 Jul 2011 11:40:08 -0400
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Cc: Andi Kleen <andi@firstfloor.org>, Matthew Wilcox <matthew@wil.cx>,
	Anton Blanchard <anton@samba.org>, npiggin@kernel.dk,
	viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	Tim Chen <tim.c.chen@linux.intel.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
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On Mon, Jul 18, 2011 at 10:17:08AM +0200, Eric Dumazet wrote:
> > Tim posted a patch, but it wasn't applied for unknown reasons.
> > 
> > https://lkml.org/lkml/2011/4/13/561
> > 
> 
> Could Tim respin his patch then ?

Btw, it seems like most kern_mount users want this and he's still
missing some like devtmpfs, sysfs or ipc.  What about splitting
kern_mount into a variant that gets a long-term reference for these
callers, and one that doesn't for afs/cifs/nfs automounts?