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From: Alexander Holler <holler@ahsoftware.de>
To: nicolas.dichtel@6wind.com
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	netdev@vger.kernel.org, tgraf@suug.ch, davem@davemloft.net
Subject: Re: [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns
Date: Fri, 29 May 2015 07:57:31 +0200	[thread overview]
Message-ID: <5567FFCB.4070804@ahsoftware.de> (raw)
In-Reply-To: <556484E9.4040005@ahsoftware.de>

Am 26.05.2015 um 16:36 schrieb Alexander Holler:
> Am 26.05.2015 um 14:10 schrieb Nicolas Dichtel:
>> I don't understand why dumping in another netns is a problem.
>
> It isn't. I just wondered how you (or someone else) is using
> NETLINK_LISTEN_ALL_NSID, assuming it already serves a purpose. ;)

Maybe I should correct this, as I've lied because I got a bit bored. Sorry.

That dumping in another netns itself isn't a problem, but you need 
knowledge about the other namespaces. And if you have to go through all 
the pain to find and dump the interfaces in all other namenspaces by 
joining them, than there is not that much advantage in using 
NETLINK_LISTEN_ALL_NSID as you could still listen in another netns after 
the dump there too.

But there's no need to continue the discussion. I've understood that the 
patch series was only meant to reduce the number of sockets one 
otherwise would have continuously listen to.

Alexander Holler

  reply	other threads:[~2015-05-29  5:57 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-06  9:58 [PATCH net-next 0/6] netns: ease netlink use with a lot of netns Nicolas Dichtel
2015-05-06  9:58 ` [PATCH net-next 1/6] netns: returns always an id in __peernet2id() Nicolas Dichtel
2015-05-06 11:19   ` Thomas Graf
2015-05-06  9:58 ` [PATCH net-next 2/6] netns: always provide the id to rtnl_net_fill() Nicolas Dichtel
2015-05-06 11:25   ` Thomas Graf
2015-05-06  9:58 ` [PATCH net-next 3/6] netns: rename peernet2id() to peernet2id_alloc() Nicolas Dichtel
2015-05-06 11:27   ` Thomas Graf
2015-05-06  9:58 ` [PATCH net-next 4/6] netns: notify new nsid outside __peernet2id() Nicolas Dichtel
2015-05-06 11:48   ` Thomas Graf
2015-05-06 13:39     ` Nicolas Dichtel
2015-05-06  9:58 ` [PATCH net-next 5/6] netns: use a spin_lock to protect nsid management Nicolas Dichtel
2015-05-06 12:23   ` Thomas Graf
2015-05-06 13:40     ` Nicolas Dichtel
2015-05-06 14:05       ` Thomas Graf
2015-05-06  9:58 ` [PATCH net-next 6/6] netlink: allow to listen "all" netns Nicolas Dichtel
2015-05-06 12:10   ` Thomas Graf
2015-05-06 13:42     ` Nicolas Dichtel
2015-05-07  9:02 ` [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns Nicolas Dichtel
2015-05-07  9:02   ` [PATCH net-next v2 1/7] netns: returns always an id in __peernet2id() Nicolas Dichtel
2015-05-07  9:02   ` [PATCH net-next v2 2/7] netns: always provide the id to rtnl_net_fill() Nicolas Dichtel
2015-05-07  9:02   ` [PATCH net-next v2 3/7] netns: rename peernet2id() to peernet2id_alloc() Nicolas Dichtel
2015-05-07  9:02   ` [PATCH net-next v2 4/7] netns: notify new nsid outside __peernet2id() Nicolas Dichtel
2015-05-07 11:47     ` Thomas Graf
2015-05-07  9:02   ` [PATCH net-next v2 5/7] netns: use a spin_lock to protect nsid management Nicolas Dichtel
2015-05-07  9:02   ` [PATCH net-next v2 6/7] netlink: rename private flags and states Nicolas Dichtel
2015-05-07 11:49     ` Thomas Graf
2015-05-07  9:02   ` [PATCH net-next v2 7/7] netlink: allow to listen "all" netns Nicolas Dichtel
2015-05-07 11:55     ` Thomas Graf
2015-05-08 12:02   ` [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns Eric W. Biederman
2015-05-09 21:07     ` Nicolas Dichtel
2015-05-22 20:50     ` Alexander Holler
2015-05-22 21:04       ` Cong Wang
2015-05-22 21:12         ` Alexander Holler
2015-05-22 21:29           ` Cong Wang
2015-05-22 21:46             ` Alexander Holler
2015-05-22 21:19       ` Eric W. Biederman
2015-05-22 21:30         ` Alexander Holler
2015-05-25  7:45       ` Nicolas Dichtel
2015-05-25 10:55         ` Alexander Holler
2015-05-25 13:09           ` Nicolas Dichtel
2015-05-26 10:53             ` Alexander Holler
2015-05-26 12:10               ` Nicolas Dichtel
2015-05-26 14:36                 ` Alexander Holler
2015-05-29  5:57                   ` Alexander Holler [this message]
2015-05-10  2:15   ` David Miller
2015-05-20 14:19     ` [PATCH iproute2-next 0/6] Allow to monitor 'all-nsid' with ip and ip xfrm Nicolas Dichtel
2015-05-20 14:19       ` [PATCH iproute2-next 1/6] include: update linux/netlink.h Nicolas Dichtel
2015-05-20 14:19       ` [PATCH iproute2-next 2/6] man: update ip monitor page Nicolas Dichtel
2015-05-20 14:19       ` [PATCH iproute2-next 3/6] libnetlink: introduce rtnl_listen_filter_t Nicolas Dichtel
2015-05-20 14:19       ` [PATCH iproute2-next 4/6] ipmonitor: introduce print_headers Nicolas Dichtel
2015-05-20 14:20       ` [PATCH iproute2-next 5/6] ipmonitor: allows to monitor in several netns Nicolas Dichtel
2015-05-20 14:20       ` [PATCH iproute2-next 6/6] xfrmmonitor: " Nicolas Dichtel

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