netdev - Re: Problem with iflink in netns

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Message-ID: <CAHA+R7P_MBrPLVqtvCnC+bPkQ7FHRiLgi0zHAQkz5-9_Z1MBJA@mail.gmail.com>
Date:	Tue, 13 May 2014 13:44:24 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	netdev <netdev@...r.kernel.org>
Subject: Re: Problem with iflink in netns

On Tue, May 13, 2014 at 1:05 PM, Stephen Hemminger
<stephen@...workplumber.org> wrote:
>
> That won't solve the problem.
>  1. a pointer increase size of netns and requires refcount

Yes.

>  2. iflink is still exposed in kernel user API and has to be set
>     otherwise the device is falsely reported.

Then report 0 which is not a valid ifindex?
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