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From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH] cifs: mark CONFIG_CIFS_NFSD_EXPORT as BROKEN
Date: Mon, 23 May 2011 14:23:32 -0400
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Cc: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Gerald Carter <jerry-I3iY/6WR96Zg9hUCZPvPmw@public.gmane.org>,
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To: Steve French <smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Mon, May 23, 2011 at 01:21:35PM -0500, Steve French wrote:
> Until Peter's Linux NFS fix is in - aren't we in that situation
> already with other fs.

That patch is not going to help with the fundamental problem that
you won't be able to ever find an inode that went out of cache.

In short cifs in it's current form is fundamentally unsuitable for
NFS exporting, and no papering over is going to fix that.  Offering
it to users is highly dangerous.