From mboxrd@z Thu Jan  1 00:00:00 1970
From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: [RFC] Support for stackable file systems on top of nfs
Date: Fri, 11 Nov 2005 14:42:19 -0500
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Cc: fsdevel <linux-fsdevel@vger.kernel.org>,
	Shaya Potter <spotter@cs.columbia.edu>, nfsv4 <nfsv4@linux-nfs.org>,
	Bryan Henderson <hbryan@us.ibm.com>,
	Dave Kleikamp <shaggy@austin.ibm.com>
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To: Nikita Danilov <nikita@clusterfs.com>
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On Fri, 2005-11-11 at 22:31 +0300, Nikita Danilov wrote:

> What one may argue, on the other hand, is that struct file should be
> split into generic and file system specific part, with the low level
> code only using the latter.

This would be acceptable (and indeed we already do something like this
in the low-level NFS read/write code), but would it really make much of
a difference to stackable filesystems? Tracking the full struct file
should be no more difficult than tracking the file->private_data.

Cheers,
  Trond