>>>>> "Bart" == Bart Van Assche <bart.vanassche@xxxxxxxxxxx> writes: Bart> Should the caller of blkdev_issue_discard() implement this or Bart> should this functionality be added in blkdev_issue_discard() Bart> itself ? I'm very much against dropping information in the ioctl/filesystem submission path. But I am not against having a helper function of some sort that DM and target could use to handle heads and tails. Right now DM does not handle this and I think it would be worthwhile to have. Mike, what are your requirements? -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html