tree 2c08aaddff418e7be5c0674aeb9e4b94ec538179
parent 155e8336c373d14d87a7f91e356d85ef4b93b8f9
author Julian Anastasov <ja@ssi.bg> 1349696479 +0000
committer David S. Miller <davem@davemloft.net> 1349732556 -0400

ipv4: Add FLOWI_FLAG_KNOWN_NH

Add flag to request that output route should be
returned with known rt_gateway, in case we want to use
it as nexthop for neighbour resolving.

	The returned route can be cached as follows:

- in NH exception: because the cached routes are not shared
	with other destinations
- in FIB NH: when using gateway because all destinations for
	NH share same gateway

	As last option, to return rt_gateway!=0 we have to
set DST_NOCACHE.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>