On Tue, Oct 20, 2009 at 06:46:50PM -0400, Mike Snitzer wrote: > Allow the snapshot target to be able to verify its state relative to a > requested operation. Allows for invalid operations to be prevented, > e.g. an attempt handover an "old" snapshot's exceptions without it > having been suspended first. OK - same as we do in dm-raid1. But just be aware that: /* This does not get reverted if there's an error later. */ dm_table_presuspend_targets(map); and so it's not identical to querying the dm_suspended() property directly. Alasdair -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel