Re: [libvirt] [PATCHv2 10/15] blockjob: support pivot operation on cancel

Il 06/04/2012 06:36, Eric Blake ha scritto: > if > 'block_job_cancel' were made part of 'transaction', you could > copy multiple disks at the same point in time without pausing > the domain. This is doable. The transactioned command would do a qemu_aio_flush() in the prepare phase, and a normal block_job_cancel in the commit phase. > This also implies we may want to add a --quiesce > flag to the pivot operation, so that when breaking a mirror, the > side of the mirror that we are abandoning is at least in a stable > state with regards to guest I/O. I don't think this is needed. Either it makes a difference so it should be the default, or it doesn't and then it is not a useful knob.