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

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Message-Id: <20170727.093544.904406679221141579.davem@davemloft.net>
Date:   Thu, 27 Jul 2017 09:35:44 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jean-louis@...ond.be
Cc:     wei.liu2@...rix.com, netdev@...r.kernel.org,
        xen-devel@...ts.xenproject.org, Paul.Durrant@...rix.com
Subject: Re: [PATCH net] xen-netback: correctly schedule rate-limited queues

From: Jean-Louis Dupond <jean-louis@...ond.be>
Date: Thu, 27 Jul 2017 10:21:56 +0200

> Op 2017-06-22 17:16, schreef David Miller:
>> 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.
> 
> Could this get applied to stable & LTS kernels also?
> Seems important enough in my opinion.

Sure, queued up.