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From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [patch 4/8] fs, exportfs: Add export_encode_inode_fh helper
Date: Tue, 21 Aug 2012 14:12:53 +0100
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Cc: "J. Bruce Fields" <bfields@fieldses.org>,
	Pavel Emelyanov <xemul@parallels.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
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	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	James Bottomley <jbottomley@parallels.com>,
	Matthew Helsley <matt.helsley@gmail.com>
To: Boaz Harrosh <bharrosh@panasas.com>
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On Tue, Aug 21, 2012 at 03:51:36PM +0300, Boaz Harrosh wrote:
> For the minority of FSs that do not have a filehandle support it should
> be easy to generate a generic one, that should work 95% of the time.

Great.  Your task, then, is to show how to do that for sysfs.  Or for nfs.
Those should be representative enough for you to get the appropriate
reality check.