netdev - Re: [RFC 0/2] hv_netvsc shutdown redo

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Date:   Sat, 27 Jan 2018 17:34:05 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Haiyang Zhang <haiyangz@...rosoft.com>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        KY Srinivasan <kys@...rosoft.com>,
        "mgamal@...hat.com" <mgamal@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Stephen Hemminger <sthemmin@...rosoft.com>
Subject: Re: [RFC 0/2] hv_netvsc shutdown redo

On Sat, 27 Jan 2018 21:00:12 +0000
Haiyang Zhang <haiyangz@...rosoft.com> wrote:

> In the functions, set_channels and change_mtu, we used to call netvsc_close which has a wait for ring buffers to drain. Now, we call rndis_filter_close() directly without the wait for rings to drain. Could this be a problem?
> 

rndis_filter_close now waits for rings to drain.