netdev - Re: [PATCH net] net: Flush local routes when device changes vrf association

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Message-ID: <5669AB94.30706@cumulusnetworks.com>
Date:	Thu, 10 Dec 2015 09:43:00 -0700
From:	David Ahern <dsa@...ulusnetworks.com>
To:	netdev@...r.kernel.org
Cc:	ja@....bg
Subject: Re: [PATCH net] net: Flush local routes when device changes vrf
 association

On 12/9/15 6:35 PM, David Ahern wrote:
> The VRF driver cycles netdevs when an interface is enslaved or released:
> the down event is used to flush neighbor and route tables and the up
> event (if the interface was already up) effectively moves local and
> connected routes to the proper table.
>
> As of 4f823defdd5b the local route is left hanging around after a link
> down, so when a netdev is moved from one VRF to another (or released
> from a VRF altogether) local routes are left in the wrong table.
>
> Fix by introducing a NETDEV_VRF_CHANGE event that can be used to trigger
> the flush of all routes, including local ones.
>
> Fixes: 4f823defdd5b ("ipv4: fix to not remove local route on link down")
> Cc: Julian Anastasov <ja@....bg>
> Signed-off-by: David Ahern <dsa@...ulusnetworks.com>

At Nik's pushing I see that I can do this without adding a new netdev 
event; the NETDEV_CHANGEUPPER can be used for this as well.

Please disregard this patch.
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