ipv4: fib: Send notification before deleting FIB alias
authorIdo Schimmel <idosch@mellanox.com>
Thu, 9 Feb 2017 09:28:40 +0000 (10:28 +0100)
committerDavid S. Miller <davem@davemloft.net>
Fri, 10 Feb 2017 16:32:12 +0000 (11:32 -0500)
commit5b7d616dbccc2fd6ae959045e1a9ca17de5dfc2a
treeaa71cb5a7eb9c65ba03cf47e494f8b15cae0d622
parent42d5aa76ec8fc9602922cc590a437ecd6693523b
ipv4: fib: Send notification before deleting FIB alias

When a FIB alias is replaced following NLM_F_REPLACE, the ENTRY_ADD
notification is sent after the reference on the previous FIB info was
dropped. This is problematic as potential listeners might need to access
it in their notification blocks.

Solve this by sending the notification prior to the deletion of the
replaced FIB alias. This is consistent with ENTRY_DEL notifications.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
CC: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/fib_trie.c