netdev - Re: [PATCH net-next 1/1] net sched actions: dump more than TCA_ACT_MAX

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Message-ID: <851ssqq5wb.fsf@mojatatu.com>
Date:   Mon, 17 Apr 2017 13:51:32 -0400
From:   Roman Mashak <mrv@...atatu.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>, Jiri Pirko <jiri@...nulli.us>,
        davem@...emloft.net, netdev@...r.kernel.org,
        xiyou.wangcong@...il.com
Subject: Re: [PATCH net-next 1/1] net sched actions: dump more than TCA_ACT_MAX_PRIO actions per batch

Eric Dumazet <eric.dumazet@...il.com> writes:

> On Mon, 2017-04-17 at 12:46 -0400, Jamal Hadi Salim wrote:
>
>> Of course it is trivial to add this as attributes and 32 bits
>> for this case is not a big deal because it is done once. I want to talk
>> about the pads instead ;-> What do you suggest we do with pads?
>
> We do nothing with pads. Just leave them.
>
> Or, you need something to make sure to not break old user applications.
>
> Something like a version.

Would be a new NLM_F_* modifier for GET request an option for large
dumps implementation? Looks like there are extract bits and Johannes'
patches for extended ACK do not use it.