diff options
| -rw-r--r-- | net/ipv6/ip6_fib.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 7bae6a91b487..045bcaf5e770 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1039,6 +1039,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt, (info->nlh->nlmsg_flags & NLM_F_CREATE)); int found = 0; bool rt_can_ecmp = rt6_qualify_for_ecmp(rt); + bool notify_sibling_rt = false; u16 nlflags = NLM_F_EXCL; int err; @@ -1130,6 +1131,7 @@ next_iter: /* Find the first route that have the same metric */ sibling = leaf; + notify_sibling_rt = true; while (sibling) { if (sibling->fib6_metric == rt->fib6_metric && rt6_qualify_for_ecmp(sibling)) { @@ -1139,6 +1141,7 @@ next_iter: } sibling = rcu_dereference_protected(sibling->fib6_next, lockdep_is_held(&rt->fib6_table->tb6_lock)); + notify_sibling_rt = false; } /* For each sibling in the list, increment the counter of * siblings. BUG() if counters does not match, list of siblings @@ -1166,6 +1169,21 @@ add: nlflags |= NLM_F_CREATE; if (!info->skip_notify_kernel) { + enum fib_event_type fib_event; + + if (notify_sibling_rt) + fib_event = FIB_EVENT_ENTRY_APPEND; + else + fib_event = FIB_EVENT_ENTRY_REPLACE_TMP; + /* The route should only be notified if it is the first + * route in the node or if it is added as a sibling + * route to the first route in the node. + */ + if (notify_sibling_rt || ins == &fn->leaf) + err = call_fib6_entry_notifiers(info->nl_net, + fib_event, rt, + extack); + err = call_fib6_entry_notifiers(info->nl_net, FIB_EVENT_ENTRY_ADD, rt, extack); |