netdev - Re: [PATCHv1 net] xen-netback: transition to CLOSED when removing a VIF

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Message-Id: <20131008.213452.1273097532081875318.davem@davemloft.net>
Date:	Tue, 08 Oct 2013 21:34:52 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	david.vrabel@...rix.com
Cc:	xen-devel@...ts.xen.org, konrad.wilk@...cle.com,
	boris.ostrovsky@...cle.com, netdev@...r.kernel.org,
	ian.campbell@...rix.com, wei.liu2@...rix.com,
	Paul.Durrant@...rix.com
Subject: Re: [PATCHv1 net] xen-netback: transition to CLOSED when removing
 a VIF

From: David Vrabel <david.vrabel@...rix.com>
Date: Mon, 7 Oct 2013 13:55:19 +0100

> From: David Vrabel <david.vrabel@...rix.com>
> 
> If a guest is destroyed without transitioning its frontend to CLOSED,
> the domain becomes a zombie as netback was not grant unmapping the
> shared rings.
> 
> When removing a VIF, transition the backend to CLOSED so the VIF is
> disconnected if necessary (which will unmap the shared rings etc).
> 
> This fixes a regression introduced by
> 279f438e36c0a70b23b86d2090aeec50155034a9 (xen-netback: Don't destroy
> the netdev until the vif is shut down).
> 
> Signed-off-by: David Vrabel <david.vrabel@...rix.com>

Applied, thanks.
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