From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Tue, 29 Dec 2015 23:55:19 +0000 (-0500)
Subject: NFS: Fix attribute cache revalidation
X-Git-Tag: v3.2.77~59
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ac492979f1fd87e63208119b4a34e8b114a3db4;p=pandora-kernel.git

NFS: Fix attribute cache revalidation

commit ade14a7df796d4e86bd9d181193c883a57b13db0 upstream.

If a NFSv4 client uses the cache_consistency_bitmask in order to
request only information about the change attribute, timestamps and
size, then it has not revalidated all attributes, and hence the
attribute timeout timestamp should not be updated.

Reported-by: Donald Buczek <buczek@molgen.mpg.de>
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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