linux-kernel - Re: [net PATCH v3 2/3] net: netprio: fd passed in SCM

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Date:	Thu, 16 Aug 2012 15:11:51 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	john.r.fastabend@...el.com
Cc:	viro@...IV.linux.org.uk, nhorman@...driver.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	joe@...ches.com
Subject: Re: [net PATCH v3 2/3] net: netprio: fd passed in SCM_RIGHTS
 datagram not set correctly

From: John Fastabend <john.r.fastabend@...el.com>
Date: Tue, 14 Aug 2012 15:34:30 -0700

> 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@...driver.com>
> Reported-by: Al Viro <viro@...IV.linux.org.uk>
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>

Applied.
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