From: J. Bruce Fields <bfields@redhat.com>
Date: Wed, 19 Jun 2013 19:47:37 +0000 (-0400)
Subject: nfsd4: delegation-based open reclaims should bypass permissions
X-Git-Tag: v3.11-rc1~32^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89f6c3362cb5a6bce96dbe6aa15b4749c2262b21;p=pandora-kernel.git

nfsd4: delegation-based open reclaims should bypass permissions

We saw a v4.0 client's create fail as follows:

	- open create succeeds and gets a read delegation
	- client attempts to set mode on new file, gets DELAY while
	  server recalls delegation.
	- client attempts a CLAIM_DELEGATE_CUR open using the
	  delegation, gets error because of new file mode.

This probably can't happen on a recent kernel since we're no longer
giving out delegations on create opens.  Nevertheless, it's a
bug--reclaim opens should bypass permission checks.

Reported-by: Steve Dickson <steved@redhat.com>
Reported-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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