net: sched: implement action API that deletes action by index
Implement new action API function that atomically finds and deletes action from idr by index. Intended to be used by lockless actions that do not rely on rtnl lock. Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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