Hey, again. On Thu, Jan 02, 2014 at 11:01:02AM -0500, tj@xxxxxxxxxx wrote: > What we're missing is a way to make such split visible in the upper > layers for writeback. It seems rather clear to me that that's the > right way to approach the problem rather than implementing separate > control for writebacks and somehow coordinate that with the rest. To clarify a bit. I think what we need to do is splitting bdi's for each active blkcg (at least the part which is relevant to propagating io pressure upwards). I really don't think a scheme where we try to somehow split bandwidth number between two separate enforcing mechanisms is something we should go after. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html