net: core: introduce mini_Qdisc and eliminate usage of tp->q for clsact fastpath

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In sch_handle_egress and sch_handle_ingress tp->q is used only in order
to update stats. So stats and filter list are the only things that are
needed in clsact qdisc fastpath processing. Introduce new mini_Qdisc
struct to hold those items. Also, introduce a helper to swap the
mini_Qdisc structures in case filter list head changes.

This removes need for tp->q usage without added overhead.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jiri Pirko 2017-11-03 11:46:25 +01:00 • committed by David S. Miller

parent c7eb7d7230

commit 46209401f8

5 changed files with 109 additions and 18 deletions

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9

include/linux/netdevice.h

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32

include/net/sch_generic.h

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21

net/core/dev.c

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46

net/sched/sch_generic.c

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19

net/sched/sch_ingress.c

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