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authorMahesh Bandewar <maheshb@google.com>2019-07-01 23:38:57 +0200
committerDavid S. Miller <davem@davemloft.net>2019-07-02 04:34:46 +0200
commit8d7017fd621d02ff0d47d19484350c2356828483 (patch)
tree50a9602573c42c05fda4e01447f06483ccf7b68a /net/ipv4/route.c
parentloopback: create blackhole net device similar to loopack. (diff)
downloadlinux-8d7017fd621d02ff0d47d19484350c2356828483.tar.xz
linux-8d7017fd621d02ff0d47d19484350c2356828483.zip
blackhole_netdev: use blackhole_netdev to invalidate dst entries
Use blackhole_netdev instead of 'lo' device with lower MTU when marking dst "dead". Signed-off-by: Mahesh Bandewar <maheshb@google.com> Tested-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index bbd55c7f6b2e..dc1f510a7c81 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1532,7 +1532,6 @@ static void ipv4_dst_destroy(struct dst_entry *dst)
void rt_flush_dev(struct net_device *dev)
{
- struct net *net = dev_net(dev);
struct rtable *rt;
int cpu;
@@ -1543,7 +1542,7 @@ void rt_flush_dev(struct net_device *dev)
list_for_each_entry(rt, &ul->head, rt_uncached) {
if (rt->dst.dev != dev)
continue;
- rt->dst.dev = net->loopback_dev;
+ rt->dst.dev = blackhole_netdev;
dev_hold(rt->dst.dev);
dev_put(dev);
}