On Wed, Apr 24, 2019 at 06:19:32PM +0800, Yuyang Du wrote: > Since there is no need for backward dependecy searching, remove this > extra function layer.
OK, so $subject confused the heck out of me, I thought you were going to remove the whole bfs machinery. May I suggest retaining __bfs_backwards() in the previous patch (which I'm _waay_ to tired for to look at now) and calling this patch: "Remove __bfs_backwards()".

