From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Thu, 18 Sep 2014 15:51:32 +0000 (-0400)
Subject: NFSv4: Fix another bug in the close/open_downgrade code
X-Git-Tag: v3.2.64~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5bd3c0477993f54bac2c4618655e4102ffe1fab4;p=pandora-kernel.git

NFSv4: Fix another bug in the close/open_downgrade code

commit cd9288ffaea4359d5cfe2b8d264911506aed26a4 upstream.

James Drew reports another bug whereby the NFS client is now sending
an OPEN_DOWNGRADE in a situation where it should really have sent a
CLOSE: the client is opening the file for O_RDWR, but then trying to
do a downgrade to O_RDONLY, which is not allowed by the NFSv4 spec.

Reported-by: James Drews <drews@engr.wisc.edu>
Link: http://lkml.kernel.org/r/541AD7E5.8020409@engr.wisc.edu
Fixes: aee7af356e15 (NFSv4: Fix problems with close in the presence...)
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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