tree 8da6452386b6e900c4226c9b67694d1ea21e847e
parent f7594d42944c0dfca90318f50978a4bdf8504086
author David S. Miller <davem@davemloft.net> 1301013741 -0700
committer David S. Miller <davem@davemloft.net> 1301013741 -0700

ipv4: Invalidate nexthop cache nh_saddr more correctly.

Any operation that:

1) Brings up an interface
2) Adds an IP address to an interface
3) Deletes an IP address from an interface

can potentially invalidate the nh_saddr value, requiring
it to be recomputed.

Perform the recomputation lazily using a generation ID.

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