Re: [PATCH] net: orphan queued skbs if device tx can stall

From: Michael S. Tsirkin
Date: Tue May 08 2012 - 15:35:27 EST

On Tue, Apr 10, 2012 at 03:52:09PM +0200, Eric Dumazet wrote:
> By the way, skb orphaning should already be done in skb_orphan_try(),
> not sure why its done again in tun_net_xmit().

Because we need to force it for skbs which have tx_flags set.

> Note we perform orphaning
> right before giving skb to device on premise it'll be sent (and freed)
> in a reasonable amount of time.

It is usually the case. I think this assumption holds for
tun normally.

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