On Tue, Jun 19, 2012 at 11:28:56AM -0400, Mike Snitzer wrote: > That is an lvm2 BZ but there is further kernel work needed. In principle, userspace should already be able to handle the replumbing I think. (But when we work through the details of an online import, perhaps we'll want some further kernel change for atomicity/speed reasons? In particular we need to be able to do the last part of the metadata merge quickly.) Roughly: 1. rejig the lvm metadata for the new configuration [lvm] - appends the "whole LV" data to the pool's data 2. Generate metadata for the appended data and append this to the metadata area [dmpd] 3. suspend all the affected devices [lvm] 4. link the already-prepared metadata into the existing metadata [dmpd] 5. resume all the devices (now using the new extended pool) Alasdair -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
