Here's a tentative patch set for transitioning the non_rotational, discard and secure discard queue flags to the topology information. The first patch introduces a new function for setting the default limits for stacking drivers like we discussed a few weeks ago. Wrt. to naming I felt it was best to have a function that said "stacking". That's why I introduced a new call instead of using blk_set_default_limits() even though that function was originally motivated by device mapper. The last two patches deal with non-rotational and the discard flags respectively. Let me know what you guys think... -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel