netdev - Re: [PATCH] pktgen: nowait parameter.

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Message-Id: <20140912.175241.1635965281290152700.davem@davemloft.net>
Date:	Fri, 12 Sep 2014 17:52:41 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	rusty@...tcorp.com.au
Cc:	netdev@...r.kernel.org, brouer@...hat.com, minipli@...glemail.com
Subject: Re: [PATCH] pktgen: nowait parameter.

From: Rusty Russell <rusty@...tcorp.com.au>
Date: Thu, 11 Sep 2014 09:07:29 +0930

> David Miller <davem@...emloft.net> writes:
>> From: Rusty Russell <rusty@...tcorp.com.au>
>> Date: Wed, 03 Sep 2014 13:50:01 +0930
>>
>> BTW, wrt. holding onto TX frames for unbounded amounts of time, I
>> think this is a bad idea even with skb_orphan().  There are resources
>> from the SKB you are hanging onto which can stall the removal of
>> modules indefinitely, such as netfilter references.
> 
> We could certainly have a once-a-second timer which did this, but should
> skb_orphan() do that work instead?

It would definitely improve the situation.

I've discussed a few times with Herbert Xu the idea of using hrtimers
since we have those, to do something more clever and timely.
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