From: John Fastabend <john.r.fastabend@intel.com>
Date: Tue, 14 Aug 2012 12:34:30 +0000 (+0000)
Subject: net: netprio: fd passed in SCM_RIGHTS datagram not set correctly
X-Git-Tag: v3.6-rc3~10^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48a87cc26c13b68f6cce4e9d769fcb17a6b3e4b8;p=pandora-kernel.git

net: netprio: fd passed in SCM_RIGHTS datagram not set correctly

A socket fd passed in a SCM_RIGHTS datagram was not getting
updated with the new tasks cgrp prioidx. This leaves IO on
the socket tagged with the old tasks priority.

To fix this add a check in the scm recvmsg path to update the
sock cgrp prioidx with the new tasks value.

Thanks to Al Viro for catching this.

CC: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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