On Fri, Jun 26, 2020 at 3:46 PM Petr Machata <pe...@mellanox.com> wrote: > The function tcf_qevent_handle() should be invoked when qdisc hits the > "interesting event" corresponding to a block. This function releases root > lock for the duration of executing the attached filters, to allow packets > generated through user actions (notably mirred) to be reinserted to the > same qdisc tree.
Are you sure releasing the root lock in the middle of an enqueue operation is a good idea? I mean, it seems racy with qdisc change or reset path, for example, __red_change() could update some RED parameters immediately after you release the root lock. Thanks.
