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From: David Miller <davem@davemloft.net>
To: nicolas.dichtel@6wind.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next 0/2] Ease nsid allocation
Date: Tue, 01 Oct 2019 21:20:27 -0400 (EDT)	[thread overview]
Message-ID: <20191001.212027.1363612671973318110.davem@davemloft.net> (raw)
In-Reply-To: <20190930160214.4512-1-nicolas.dichtel@6wind.com>

From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Mon, 30 Sep 2019 18:02:12 +0200

> The goal of the series is to ease nsid allocation from userland.
> The first patch is a preparation work and the second enables to receive the
> new nsid in the answer to RTM_NEWNSID.

The new reply message could break existing apps.

If an app only performs netnsid operations, and fills up the receive
queue because it isn't reading these new replies (it had no reason to,
they didn't exist previously), operations will start failing that
would not fail previously because the receive queue is full.

Given this, I don't see how we can make the change.

  parent reply	other threads:[~2019-10-02  1:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-30 16:02 [PATCH net-next 0/2] Ease nsid allocation Nicolas Dichtel
2019-09-30 16:02 ` [PATCH net-next 1/2] netns: move rtnl_net_get_size() and rtnl_net_fill() Nicolas Dichtel
2019-09-30 16:02 ` [PATCH net-next 2/2] netns/rtnl: return the new nsid to the user Nicolas Dichtel
2019-10-02  1:20 ` David Miller [this message]
2019-10-02  8:46   ` [PATCH net-next 0/2] Ease nsid allocation Nicolas Dichtel
2019-10-02 14:58     ` David Miller
2019-10-03 16:19     ` Guillaume Nault
2019-10-04 15:45       ` Nicolas Dichtel
2019-10-08 23:00         ` Guillaume Nault
2019-10-07 11:58       ` [PATCH net] netns: fix NLM_F_ECHO mechanism for RTM_NEWNSID Nicolas Dichtel
2019-10-08 23:10         ` Guillaume Nault
2019-10-09  8:07           ` Nicolas Dichtel
2019-10-09 13:48             ` Guillaume Nault
2019-10-09  9:19           ` [PATCH net v2] " Nicolas Dichtel
2019-10-09 13:48             ` Guillaume Nault
2019-10-10  4:06             ` Jakub Kicinski

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