From 77a3569d6c4e14e89fa628df383b6dccc0cce6be Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@citi.umich.edu>
Date: Fri, 30 Apr 2010 18:51:44 -0400
Subject: [PATCH] nfsd4: keep finer-grained callback status

Distinguish between when the callback channel is known to be down, and
when it is not yet confirmed.  This will be useful in the 4.1 case.

Also, we don't seem to be using the fact that this field is atomic.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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