From: Andy Adamson <andros@netapp.com>
Date: Mon, 9 Jun 2014 19:33:20 +0000 (-0400)
Subject: NFS Return -EPERM if no supported or matching SECINFO flavor
X-Git-Tag: omap-for-v3.16/fixes-rc4~54^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8445cd3528b21da77c41ad1372a944ef94d7516f;p=pandora-kernel.git

NFS Return -EPERM if no supported or matching SECINFO flavor

Do not return RPC_AUTH_UNIX if SEINFO reply tests fail. This
prevents an infinite loop of NFS4ERR_WRONGSEC for non RPC_AUTH_UNIX mounts.

Without this patch, a mount with no sec= option to a server
that does not include RPC_AUTH_UNIX in the
SECINFO return can be presented with an attemtp to use RPC_AUTH_UNIX
which will result in an NFS4ERR_WRONG_SEC which will prompt the SECINFO
call which will again try RPC_AUTH_UNIX....

Signed-off-by: Andy Adamson <andros@netapp.com>
Tested-By: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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