From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: netem and hierarchical ingress traffic shaping
Date: Fri, 23 Dec 2011 19:28:27 +0100
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To: Dave Taht <dave.taht@gmail.com>
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Le vendredi 23 d=C3=A9cembre 2011 =C3=A0 18:54 +0100, Dave Taht a =C3=A9=
crit :

> Are there any place where all 48 bytes of cb are used?
>=20

Yes, but on in qdisc layer.

struct tcp_skb_cb is known to be 44 bytes (when IPv6 is enabled)

In qdisc layer, we use a small part of it, for the moment.

> I wouldn't mind if 'time_to_send' became a separate skb field
> for a more generic 'time_in_queue'...
>=20

This wont happen.

As I posted in an earlier patch, this can be added in "struct
qdisc_skb_cb"