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From: "Rémi Denis-Courmont" <remi@remlab•net>
To: Vasily Averin <vvs@virtuozzo•com>
Cc: netdev@vger•kernel.org
Subject: Re: [PATCH v3 20/21] phonet: exit_net cleanup check added
Date: Mon, 06 Nov 2017 21:37:05 +0200	[thread overview]
Message-ID: <1946841.cosy99WJrV@basile.remlab.net> (raw)
In-Reply-To: <23f507fd-576c-d1be-3531-3a98364eb9ba@virtuozzo.com>

Le maanantaina 6. marraskuuta 2017, 16.25.54 EET Vasily Averin a écrit :
> Be sure that pndevs.list initialized in net_init hook was return
> to initial state.
> 
> Signed-off-by: Vasily Averin <vvs@virtuozzo•com>
> ---
>  net/phonet/pn_dev.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
> index 2cb4c5d..f0ab85d 100644
> --- a/net/phonet/pn_dev.c
> +++ b/net/phonet/pn_dev.c
> @@ -331,7 +331,12 @@ static int __net_init phonet_init_net(struct net *net)
> 
>  static void __net_exit phonet_exit_net(struct net *net)
>  {
> +	struct phonet_net *pnn = phonet_pernet(net);
> +
>  	remove_proc_entry("phonet", net->proc_net);
> +	WARN_ONCE(!list_empty(&pnn->pndevs.list),
> +		  "net %x %s: pndevs.list is not empty\n",
> +		  net->ns.inum, __func__);
>  }
> 
>  static struct pernet_operations phonet_net_ops = {

In my opinon, tis is still utterly pointless. Really, what bug did this 
specific patch help to fix?

If you want to debug network namespaces, I have a feeling that the network 
namespace code is a better place to do so than individual protocol stacks.

-- 
雷米‧德尼-库尔蒙
https://www.remlab.net/

  reply	other threads:[~2017-11-06 19:37 UTC|newest]

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-05  9:58 [PATCH 00/21] exit_net checks for objects initialized in net_init hook Vasily Averin
2017-11-05 16:49 ` [PATCH v2 " Vasily Averin
2017-11-06 13:22   ` [PATCH v3 " Vasily Averin
2017-11-12  8:39     ` [PATCH v4 00/18] " Vasily Averin
2017-11-12 15:06       ` Vasily Averin
2017-11-12 19:26       ` [PATCH v5 00/13] " Vasily Averin
2017-11-14  6:47         ` David Miller
     [not found]           ` <20171114.154720.1071922306148362515.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2017-11-14 14:41             ` Vasily Averin
2017-11-12 19:26       ` [PATCH v5 01/13] af_key: replace BUG_ON on WARN_ON in net_exit hook Vasily Averin
2017-11-12 19:27       ` [PATCH v5 02/13] geneve: exit_net cleanup check added Vasily Averin
2017-11-12 19:27       ` [PATCH v5 03/13] packet: " Vasily Averin
2017-11-12 19:28       ` [PATCH v5 04/13] vxlan: exit_net cleanup checks added Vasily Averin
2017-11-12 19:28       ` [PATCH v5 05/13] netdev: exit_net cleanup check added Vasily Averin
2017-11-12 19:29       ` [PATCH v5 06/13] fib_notifier: " Vasily Averin
2017-11-12 19:30       ` [PATCH v5 07/13] fib_rules: " Vasily Averin
2017-11-12 19:30       ` [PATCH v5 08/13] l2tp: " Vasily Averin
     [not found]       ` <cb06dace-88a8-fecf-92ad-02920920a0d3-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2017-11-12 19:31         ` [PATCH v5 09/13] nfs client: " Vasily Averin
2017-11-12 19:32         ` [PATCH v5 10/13] sunrpc: " Vasily Averin
2017-11-12 19:32       ` [PATCH v5 11/13] phonet: " Vasily Averin
2017-11-12 19:33       ` [PATCH v5 12/13] ppp: exit_net cleanup checks added Vasily Averin
2017-11-12 19:34       ` [PATCH v5 13/13] xfrm6_tunnel: exit_net cleanup check added Vasily Averin
2017-11-12  8:39     ` [PATCH v4 01/18] af_key: replace BUG_ON on WARN_ON in net_exit hook Vasily Averin
2017-11-12  8:40     ` [PATCH v4 02/18] geneve: exit_net cleanup check added Vasily Averin
2017-11-12  8:41     ` [PATCH v4 03/18] packet: " Vasily Averin
2017-11-12  8:42     ` [PATCH v4 04/18] vxlan: exit_net cleanup checks added Vasily Averin
2017-11-12  8:42     ` [PATCH v4 05/18] netdev: exit_net cleanup check added Vasily Averin
2017-11-12  8:42     ` [PATCH v4 06/18] fib_notifier: " Vasily Averin
2017-11-12  8:43     ` [PATCH v4 07/18] fib_rules: " Vasily Averin
2017-11-12  8:44     ` [PATCH v4 08/18] l2tp: " Vasily Averin
2017-11-12  8:44     ` [PATCH v4 09/18] clusterip: " Vasily Averin
2017-11-12  8:45     ` [PATCH v4 10/18] nf_tables: " Vasily Averin
2017-11-12  8:46     ` [PATCH v4 11/18] nfnetlink_log: " Vasily Averin
2017-11-12  8:53       ` Florian Westphal
2017-11-12 11:28       ` Sergei Shtylyov
2017-11-12  8:47     ` [PATCH v4 12/18] nfnetlink_gueue: " Vasily Averin
2017-11-12  8:52       ` Florian Westphal
2017-11-12  9:02         ` Vasily Averin
2017-11-12  8:47     ` [PATCH v4 13/18] x_tables: " Vasily Averin
     [not found]     ` <9dfa013e-9098-e155-9c47-a73753338288-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2017-11-12  8:48       ` [PATCH v4 14/18] nfs client: " Vasily Averin
2017-11-12  8:48       ` [PATCH v4 15/18] sunrpc: " Vasily Averin
2017-11-12  8:49     ` [PATCH v4 16/18] phonet: " Vasily Averin
2017-11-12  8:50     ` [PATCH v4 17/18] ppp: exit_net cleanup checks added Vasily Averin
2017-11-12  8:51     ` [PATCH v4 18/18] xfrm6_tunnel: exit_net cleanup check added Vasily Averin
2017-11-06 13:23   ` [PATCH v3 02/21] lockd: added cleanup checks in exit_net hook Vasily Averin
2017-11-09 15:06     ` J. Bruce Fields
2017-11-06 13:23   ` [PATCH v3 03/21] exit_net cleanup: geneve sock_list check Vasily Averin
2017-11-06 13:23   ` [PATCH v3 04/21] ppp: exit_net cleanup checks added Vasily Averin
2017-11-06 13:34     ` walter harms
2017-11-06 13:23   ` [PATCH v3 05/21] vxlan: " Vasily Averin
2017-11-06 13:24   ` [PATCH v3 06/21] netdev: exit_net cleanup check added Vasily Averin
     [not found]   ` <4fdc4264-e338-6ee8-a662-7d98b45733a1-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2017-11-06 13:22     ` [PATCH v3 01/21] grace: replace BUG_ON by WARN_ONCE in exit_net hook Vasily Averin
2017-11-06 20:02       ` J. Bruce Fields
     [not found]       ` <a059abdd-e727-adcb-7b43-976be1d0a08e-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2017-11-09 15:06         ` J. Bruce Fields
2017-11-06 13:24     ` [PATCH v3 07/21] nfs4blocklayout: exit_net cleanup check added Vasily Averin
2017-11-06 13:24   ` [PATCH v3 08/21] nfs client: " Vasily Averin
2017-11-06 13:24   ` [PATCH v3 09/21] fib_notifier: " Vasily Averin
2017-11-06 13:24   ` [PATCH v3 10/21] fib_rules: " Vasily Averin
2017-11-06 13:24   ` [PATCH v3 11/21] clusterip: " Vasily Averin
2017-11-06 13:40     ` Jozsef Kadlecsik
2017-11-06 13:24   ` [PATCH v3 12/21] xfrm6_tunnel: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 13/21] af_key: replace BUG_ON on WARN_ONCE in net_exit hook Vasily Averin
2017-11-06 13:25   ` [PATCH v3 14/21] l2tp: exit_net cleanup check added Vasily Averin
2017-11-06 13:25   ` [PATCH v3 15/21] nf_tables: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 16/21] nfnetlink_log: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 17/21] nfnetlink_gueue: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 18/21] x_tables: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 19/21] packet: " Vasily Averin
2017-11-06 13:25   ` [PATCH v3 20/21] phonet: " Vasily Averin
2017-11-06 19:37     ` Rémi Denis-Courmont [this message]
2017-11-12  9:24       ` Vasily Averin
2017-11-06 13:26   ` [PATCH v3 21/21] sunrpc: " Vasily Averin
2017-11-05 16:49 ` [PATCH v2 01/21] exit_net cleanup: geneve sock_list check Vasily Averin
2017-11-07  2:37   ` kbuild test robot
2017-11-05 16:49 ` [PATCH v2 02/21] ppp: exit_net cleanup checks added Vasily Averin
2017-11-05 16:49 ` [PATCH v2 03/21] vxlan: " Vasily Averin
2017-11-05 16:49 ` [PATCH v2 04/21] netdev: exit_net cleanup check added Vasily Averin
2017-11-05 16:49 ` [PATCH v2 05/21] nfs4blocklayout: " Vasily Averin
2017-11-05 16:50 ` [PATCH v2 07/21] fib_notifier: " Vasily Averin
2017-11-05 16:50 ` [PATCH v2 08/21] fib_rules: " Vasily Averin
2017-11-05 16:50 ` [PATCH v2 09/21] clusterip: " Vasily Averin
2017-11-07  2:42   ` kbuild test robot
2017-11-05 16:50 ` [PATCH v2 10/21] xfrm6_tunnel: " Vasily Averin
2017-11-05 16:50 ` [PATCH v2 11/21] af_key: replace BUG_ON on WARN_ON in net_exit hook Vasily Averin
2017-11-05 16:50 ` [PATCH v2 12/21] l2tp: exit_net cleanup check added Vasily Averin
2017-11-05 16:50 ` [PATCH v2 13/21] nf_tables: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 14/21] nfnetlink_log: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 15/21] nfnetlink_gueue: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 16/21] x_tables: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 17/21] hashlimit: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 18/21] recent: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 19/21] packet: " Vasily Averin
2017-11-05 16:51 ` [PATCH v2 20/21] phonet: " Vasily Averin
     [not found] ` <bafb347d-e36e-8b2b-7646-afc458a7a32a-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2017-11-05 16:50   ` [PATCH v2 06/21] nfs client: " Vasily Averin
2017-11-05 16:52   ` [PATCH v2 21/21] sunrpc: " Vasily Averin

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