[RTNETLINK]: Fix sending netlink message when replace route.

When you replace route via ip r r command the netlink multicast message is
not send.  This patch corrects it.  NL message is sent with NLM_F_REPLACE
flag.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8320

Signed-off-by: Milan Kocian <milon@wq.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 9cfecf1215c9..07e843a47dde 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -456,6 +456,8 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
                         fib_release_info(fi_drop);
                         if (state & FA_S_ACCESSED)
                                 rt_cache_flush(-1);
+                        rtmsg_fib(RTM_NEWROUTE, key, fa, cfg->fc_dst_len, tb->tb_id,
+                                  &cfg->fc_nlinfo, NLM_F_REPLACE);
                         return 0;
                 }
 
@@ -523,7 +525,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
         rt_cache_flush(-1);
 
         rtmsg_fib(RTM_NEWROUTE, key, new_fa, cfg->fc_dst_len, tb->tb_id,
-                  &cfg->fc_nlinfo);
+                  &cfg->fc_nlinfo, 0);
         return 0;
 
 out_free_new_fa:
@@ -589,7 +591,7 @@ static int fn_hash_delete(struct fib_table *tb, struct fib_config *cfg)
 
                 fa = fa_to_delete;
                 rtmsg_fib(RTM_DELROUTE, key, fa, cfg->fc_dst_len,
-                          tb->tb_id, &cfg->fc_nlinfo);
+                          tb->tb_id, &cfg->fc_nlinfo, 0);
 
                 kill_fn = 0;
                 write_lock_bh(&fib_hash_lock);