linux-kernel - Re: [PATCH net-next] hv_netvsc: Add close of RNDIS filter into change mtu call

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Message-Id: <20150715.211225.1168237758074370336.davem@davemloft.net>
Date:	Wed, 15 Jul 2015 21:12:25 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	haiyangz@...rosoft.com
Cc:	netdev@...r.kernel.org, kys@...rosoft.com, olaf@...fle.de,
	jasowang@...hat.com, linux-kernel@...r.kernel.org,
	driverdev-devel@...uxdriverproject.org
Subject: Re: [PATCH net-next] hv_netvsc: Add close of RNDIS filter into
 change mtu call

From: Haiyang Zhang <haiyangz@...rosoft.com>
Date: Mon, 13 Jul 2015 13:09:16 -0700

> The current change mtu call only stops tx before removing RNDIS filter.
> In case ringbufer is not empty, the rndis_filter_device_remove() may
> hang on removing the buffers.
> 
> This patch adds close of RNDIS filter before removing it, also a
> gradual waiting loop until the ring is empty. The change_mtu hang
> issue under heavy traffic is solved by this patch.
> 
> Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> Reviewed-by: K. Y. Srinivasan <kys@...rosoft.com>

Applied, thanks.
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