From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [patch 3/7] fs, notify: Add file handle entry into
 inotify_inode_mark
Date: Tue, 13 Nov 2012 14:38:08 -0800
Message-ID: <20121113143808.8d198bfe.akpm@linux-foundation.org>
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Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Al Viro <viro@zeniv.linux.org.uk>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Pavel Emelyanov <xemul@parallels.com>,
	James Bottomley <jbottomley@parallels.com>,
	Matthew Helsley <matt.helsley@gmail.com>,
	aneesh.kumar@linux.vnet.ibm.com, bfields@fieldses.org
To: Cyrill Gorcunov <gorcunov@openvz.org>
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On Tue, 13 Nov 2012 12:00:32 +0400
Cyrill Gorcunov <gorcunov@openvz.org> wrote:

> > Dumb question: do we really need inotify_inode_mark.fhandle at all? 
> > What prevents us from assembling this info on demand when ->show_fdinfo() is
> > called?
> 
> exportfs requires the dentry to be passed as an argument while inotify works
> with inodes instead and at moment of show-fdinfo the target dentry might be
> already deleted but inode yet present as far as I remember.

How can the c/r restore code reestablish the inode data if the dentry
isn't there any more?