Re: [PATCH net-next v2 3/6] rtnetlink: add helper to dump qdisc name

Eric Dumazet [off-list ref] wrote:

On Fri, 2017-09-22 at 08:10 +0200, Florian Westphal wrote:

quoted

We can use rcu here to make this safe even if we would not hold rtnl:
qdisc_destroy uses call_rcu to free the Qdisc struct.

Where do you see call_rcu() called from qdisc_destroy() ?

You missed this commit I guess

752fbcc33405d6f8249465e4b2c4e420091bb825
("net_sched: no need to free qdisc in RCU callback")

Indeed, I did, patch dropped, thanks for the heads-up.