linux-kernel - Re: [PATCH net-next 2/2] tuntap: orphan frags before trying to set tx timestamp

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Message-ID: <20130904155738.GC4194@netboy>
Date:	Wed, 4 Sep 2013 17:57:38 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Jason Wang <jasowang@...hat.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, mst@...hat.com
Subject: Re: [PATCH net-next 2/2] tuntap: orphan frags before trying to set
 tx timestamp

On Wed, Sep 04, 2013 at 12:33:46PM +0800, Jason Wang wrote:
> sock_tx_timestamp() will clear all zerocopy flags of skb which may lead the
> frags never to be orphaned. This will break guest to guest traffic when zerocopy
> is enabled. Fix this by orphaning the frags before trying to set tx time stamp.
> 
> The issue were introduced by commit eda297729171fe16bf34fe5b0419dfb69060f623
> (tun: Support software transmit time stamping).
> 
> Cc: Richard Cochran <richardcochran@...il.com>
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Acked-by: Richard Cochran <richardcochran@...il.com>
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