From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Subject: Re: NFS4 crack
Date: Wed, 21 Sep 2005 00:44:03 -0700
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References: <20050918102100.GA23463@lst.de>
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To: Neil Brown <neilb@suse.de>
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Neil Brown <neilb@suse.de> wrote:
>
>  Now, this in-kernel-application needs to store stable
>  application-specific data somewhere.  May it:
> 
>   1/ open a directory and create files in it and write to them
>   2/ open a directory and create files provided that the name of the
>      directory is given by userspace
>   3/ create files in a directory that was created by userspace and
>      given to the knfsd application as a filedescriptor
>   4/ write data to files which were created and opened by used-space
>      based on filenames provided by knfsd (hostnames or equivalents in
>      this case). 
>   5/ pass the data to userspace and let it worry completely.
>   6/ sorry, you cannot have application-specific state.
> 

5/ sounds good.  There are numerous options, newly including connector and
configfs.