Re: [PATCH v5 net 6/6] net/sched: qdisc_destroy() old ingress and clsact Qdiscs before grafting
From: Jakub Kicinski <kuba@kernel.org>
Date: 2023-05-30 01:03:46
On Mon, 29 May 2023 15:58:50 +0300 Vlad Buslov wrote:
If livelock with concurrent filters insertion is an issue, then it can be remedied by setting a new Qdisc->flags bit "DELETED-REJECT-NEW-FILTERS" and checking for it together with QDISC_CLASS_OPS_DOIT_UNLOCKED in order to force any concurrent filter insertion coming after the flag is set to synchronize on rtnl lock.
Sounds very nice, yes.