From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCH 1/4] VFS: Add a VFS helper function
	vfs_remote_path_lookup()
Date: Fri, 3 Apr 2009 02:09:54 +0100
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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On Fri, Apr 03, 2009 at 12:18:59AM +0100, Al Viro wrote:

> Eww...  Let's not.  First of all, the really useful part of nd->root for
> normal case is that it allows to get ...->fs->root once.  So it's better
> to *cache* ->fs->root in there.  At which point the flag disappears,
> since it becomes simply nd->root.mnt != NULL.
> 
> The interesting part is keeping refcounting happy.  I'll see how to do
> that - it's clearly useful on its own.  Hopefully will post later tonight...

... and the ugly part is the check in follow_dotdot() - one about crossing
out of chroot.  Joy...