netdev - Re: Network namespace and bonding WARNING at fs/proc/generic.c remove_proc

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Message-ID: <20120706194741.GA22113@mail.hallyn.com>
Date:	Fri, 6 Jul 2012 19:47:41 +0000
From:	"Serge E. Hallyn" <serge@...lyn.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>,
	Dilip Daya <dilip.daya@...com>, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: Network namespace and bonding WARNING at fs/proc/generic.c
 remove_proc_entry

Quoting Eric W. Biederman (ebiederm@...ssion.com):
> "Serge E. Hallyn" <serge@...lyn.com> writes:
> 
> >> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
> >> index 2ee8cf9..818ed64 100644
> >> --- a/drivers/net/bonding/bond_main.c
> >> +++ b/drivers/net/bonding/bond_main.c
> >> @@ -4345,6 +4345,9 @@ static void bond_setup(struct net_device *bond_dev)
> >>         bond_dev->priv_flags |= IFF_BONDING;
> >>         bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
> >>  
> >> +       /* Don't allow bond devices to change network namespaces. */
> >> +       bond_dev->features |= NETIF_F_LOCAL;
> >
> > I believe this needs to be NETIF_F_NETNS_LOCAL.  Test build still going with
> > that change.
> 
> Yes that is what I mean.

With that change, build is fine, boots fine, I can't pass a bond to another
netns (preventing the problem), and I can create a bond in a child netns
just fine.

Thanks!

Acked-by: Serge Hallyn <serge.hallyn@...onical.com>

-serge
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