From: Alexey Kodanev <alexey.koda...@oracle.com>
Date: Mon, 5 Mar 2018 20:52:54 +0300
> When we exceed current packets limit and we have more than one
> segment in the list returned by skb_gso_segment(), netem drops
> only the first one, skipping the rest, hence kmemleak reports:
...
> Fix it by adding the rest of the segments, if any, to skb 'to_free'
> list. Add new __qdisc_drop_all() and qdisc_drop_all() functions
> because they can be useful in the future if we need to drop segmented
> GSO packets in other places.
>
> Fixes: 6071bd1aa13e ("netem: Segment GSO packets on enqueue")
> Signed-off-by: Alexey Kodanev <alexey.koda...@oracle.com>
> ---
>
> v3: use skb->prev to find the tail of the list. skb->prev can be NULL
> for not segmented skbs, so check it too.
>
> v2: add new __qdisc_drop_all() and qdisc_drop_all(), and use
> qdisc_drop_all() in sch_netem.
Applied and queued up for -stable, thanks!
