From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 14 Jun 2011 16:18:11 +0000 (-0400)
Subject: NFSv4.1: Clean ups for the device id cache
X-Git-Tag: v3.1-rc1~136^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47cb498e9316314e7e681f417135589195ad78a7;p=pandora-kernel.git

NFSv4.1: Clean ups for the device id cache

The fact that the global device id cache holds a reference to the
nfs4_deviceid_node until it is invisible to rcu lookups implies that
we can always assume that the reference count is non-zero in
_find_get_deviceid.

Also clean up nfs4_put_deviceid_node and the removal of the device id
from the cache.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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