diff options
| author | Ido Schimmel <idosch@nvidia.com> | 2020-09-15 14:41:02 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-15 16:31:25 -0700 |
| commit | 0695564bb4a24440b38b46bf52465a93a0ca1974 (patch) | |
| tree | 4ae4d8377120d3dc037baa5f1ca9c498c825339d /net/ipv4 | |
| parent | 80690ec6b595807db9a52ec5b225a2d88033ddb5 (diff) | |
nexthop: Only emit a notification when nexthop is actually deleted
Currently, the in-kernel delete notification is emitted from the error
path of nexthop_add() and replace_nexthop(), which can be confusing to
in-kernel listeners as they are not familiar with the nexthop.
Instead, only emit the notification when the nexthop is actually
deleted. The following sub-cases are covered:
1. User space deletes the nexthop
2. The nexthop is deleted by the kernel due to a netdev event (e.g.,
nexthop device going down)
3. A group is deleted because its last nexthop is being deleted
4. The network namespace of the nexthop device is deleted
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/nexthop.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 13d9219a9aa1..8c0f17c6863c 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -870,8 +870,6 @@ static void __remove_nexthop_fib(struct net *net, struct nexthop *nh) bool do_flush = false; struct fib_info *fi; - call_nexthop_notifiers(net, NEXTHOP_EVENT_DEL, nh); - list_for_each_entry(fi, &nh->fi_list, nh_list) { fi->fib_flags |= RTNH_F_DEAD; do_flush = true; @@ -909,6 +907,8 @@ static void __remove_nexthop(struct net *net, struct nexthop *nh, static void remove_nexthop(struct net *net, struct nexthop *nh, struct nl_info *nlinfo) { + call_nexthop_notifiers(net, NEXTHOP_EVENT_DEL, nh); + /* remove from the tree */ rb_erase(&nh->rb_node, &net->nexthop.rb_root); |