Re: [PATCH net-next 0/7] netconf: Add support for RTM_DELNETCONF

On 3/29/17 3:36 AM, Nicolas Dichtel wrote:

Le 29/03/2017 à 07:32, David Miller a écrit :

quoted

From: David Ahern <redacted>
Date: Tue, 28 Mar 2017 14:28:00 -0700

quoted

netconf notifications are sent as devices register but not when they
are deleted leaving userspace caches out of sync. Add support for
RTM_DELNETCONF to ipv4, ipv6 and mpls.

Not sure why those notifications are needed. When an interface is set down, ipv4
route deletion are not notified. Why is it needed for netconf?

We carry a patch to send notifications for route deletes. In general, it
makes management of libnl caches much easier when delete notifications
are sent for each type. Without it, a link delete requires walking the
other caches removing objects.