On Tue, Nov 05, 2013 at 02:10:55PM +0100, Hannes Reinecke wrote: > If this is just a left-over from the original port to request-based > (for bio-based we _have_ to queue internally as there's no request > queue to be had), fine, we should be removing it. I think that is the case. > But there _might_ be some corner cases which require us to do internal > queueing. We *only* add I/O to the internal queue in map_io() - which can always be replaced with REQUEUE, As long as we still 'wake up' the queue immediately when we are ready to receive the I/O, I can't think of any other reason. And it would let us remove quite a bit of tricky code! > Junichi, could you share some light here? Alasdair -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel