Commit d7a68e56 authored Sep 21, 2022 by Zhengchao Shao Committed by Jakub Kicinski Sep 22, 2022

net/sched: sch_api: add helper for tc qdisc walker stats dump



The walk implementation of most qdisc class modules is basically the
same. That is, the values of count and skip are checked first. If
count is greater than or equal to skip, the registered fn function is
executed. Otherwise, increase the value of count. So we can reconstruct
them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

parent a2c2a4dd

include/net/pkt_sched.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -222,4 +222,17 @@ static inline struct tc_skb_cb tc_skb_cb(const struct sk_buff skb)
		return cb;
		}

		static inline bool tc_qdisc_stats_dump(struct Qdisc *sch,
		unsigned long cl,
		struct qdisc_walker *arg)
		{
		if (arg->count >= arg->skip && arg->fn(sch, cl, arg) < 0) {
		arg->stop = 1;
		return false;
		}

		arg->count++;
		return true;
		}

		#endif