From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 12 Sep 2014 20:40:22 +0000 (-0400)
Subject: nfsd: reject reclaim request when client has already sent RECLAIM_COMPLETE
X-Git-Tag: fixes-for-v3.18-merge-window~9^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b3e7b72239a748f516d6aee8c12df48d50e2d7e;p=pandora-kernel.git

nfsd: reject reclaim request when client has already sent RECLAIM_COMPLETE

As stated in RFC 5661, section 18.51.3:

    Once a RECLAIM_COMPLETE is done, there can be no further reclaim
    operations for locks whose scope is defined as having completed
    recovery.  Once the client sends RECLAIM_COMPLETE, the server will
    not allow the client to do subsequent reclaims of locking state for
    that scope and, if these are attempted, will return
    NFS4ERR_NO_GRACE.

Ensure that we enforce that requirement.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
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