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From: Davide Caratti <dcaratti@redhat.com>
To: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Eric Dumazet <edumazet@google.com>,
	davem@davemloft.net, kuba@kernel.org,  pabeni@redhat.com,
	jiri@resnulli.us, xiyou.wangcong@gmail.com,
	 netdev@vger.kernel.org, renmingshuai@huawei.com,
	 Victor Nogueira <victor@mojatatu.com>
Subject: Re: [PATCH RFC net 1/1] net/sched: Fix mirred to self recursion
Date: Tue, 16 Apr 2024 10:05:31 +0200	[thread overview]
Message-ID: <CAKa-r6tNMuAR0RXuGbYLFW0jhpbPn4BvW1erGcqu0nCLRzH-aA@mail.gmail.com> (raw)
In-Reply-To: <CAM0EoMnKh67wGo5XV1vdUd8p8LhxrT5mtbioPOLr=sVprYNKjA@mail.gmail.com>

hello,

On Mon, Apr 15, 2024 at 11:15 PM Jamal Hadi Salim <jhs@mojatatu.com> wrote:
>
[...]

> Victor sent the patch. As i mentioned earlier, we found a lockdep
> false positive for the case of redirect from eth0->eth1->eth0
> (potential fix attached)

I tried a similar approach some months ago [1],  but  _ like Eric
noticed  _ it might slowdown qdisc_destroy() too much because of the
call to synchronize_rcu(). Maybe the key unregistering can be done
later (e.g. when the qdisc is freed) ?

[1] https://lore.kernel.org/netdev/73065927a49619fcd60e5b765c929f899a66cd1a.1701853200.git.dcaratti@redhat.com/

-- 
davide


  reply	other threads:[~2024-04-16  8:05 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-26 23:03 [PATCH RFC net 1/1] net/sched: Fix mirred to self recursion Jamal Hadi Salim
2024-03-27 13:23 ` Eric Dumazet
2024-03-27 22:57   ` Jamal Hadi Salim
2024-03-27 23:12     ` Jamal Hadi Salim
2024-04-02  2:00       ` renmingshuai
2024-04-02 16:38         ` Jamal Hadi Salim
2024-04-02 16:47     ` Eric Dumazet
2024-04-02 17:35       ` Jamal Hadi Salim
2024-04-10 20:30         ` Jamal Hadi Salim
2024-04-15  9:20           ` Eric Dumazet
2024-04-15  9:29             ` Eric Dumazet
2024-04-15 13:59             ` Jamal Hadi Salim
2024-04-15 14:01               ` Jamal Hadi Salim
2024-04-15 14:11                 ` Eric Dumazet
2024-04-15 14:17                   ` Jamal Hadi Salim
2024-04-15 21:14                   ` Jamal Hadi Salim
2024-04-16  8:05                     ` Davide Caratti [this message]
2024-04-16  9:14                       ` Eric Dumazet
2024-04-16  9:28                         ` Davide Caratti
2024-04-16  9:37                           ` Eric Dumazet
2024-04-16 10:30                       ` Jamal Hadi Salim

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