netdev - Re: [PATCH net] xen-netback: correctly schedule rate-limited queues

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Message-Id: <20170622.111648.301858879592718577.davem@davemloft.net>
Date:   Thu, 22 Jun 2017 11:16:48 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     wei.liu2@...rix.com
Cc:     netdev@...r.kernel.org, xen-devel@...ts.xenproject.org,
        Paul.Durrant@...rix.com, jean-louis@...ond.be
Subject: Re: [PATCH net] xen-netback: correctly schedule rate-limited queues

From: Wei Liu <wei.liu2@...rix.com>
Date: Wed, 21 Jun 2017 10:21:22 +0100

> Add a flag to indicate if a queue is rate-limited. Test the flag in
> NAPI poll handler and avoid rescheduling the queue if true, otherwise
> we risk locking up the host. The rescheduling will be done in the
> timer callback function.
> 
> Reported-by: Jean-Louis Dupond <jean-louis@...ond.be>
> Signed-off-by: Wei Liu <wei.liu2@...rix.com>
> Tested-by: Jean-Louis Dupond <jean-louis@...ond.be>

Applied.