ipv4: add support for linkdown sysctl to netconf

This kernel patch exports the value of the new
ignore_routes_with_linkdown via netconf.

v2: changes to notify userspace via netlink when sysctl values change
and proposed for 'net' since this could be considered a bugfix

Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/netconf.h b/include/uapi/linux/netconf.h
index 669a1f0..23cbd34 100644 (file)
--- a/include/uapi/linux/netconf.h
+++ b/include/uapi/linux/netconf.h
@@ -15,6 +15,7 @@ enum {
        NETCONFA_RP_FILTER,
        NETCONFA_MC_FORWARDING,
        NETCONFA_PROXY_NEIGH,
+       NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN,
        __NETCONFA_MAX
 };
 #define NETCONFA_MAX   (__NETCONFA_MAX - 1)

diff --cc net/ipv4/devinet.c
Simple merge