On 10/13/2015 12:27 AM, Stefan Hajnoczi wrote: > On Fri, Sep 25, 2015 at 02:17:36PM +0800, Wen Congyang wrote: >> + /* start backup job now */ >> + bdrv_op_unblock(s->hidden_disk, BLOCK_OP_TYPE_BACKUP_TARGET, >> + s->active_disk->backing_blocker); >> + bdrv_op_unblock(s->secondary_disk, BLOCK_OP_TYPE_BACKUP_SOURCE, >> + s->hidden_disk->backing_blocker); > > Why is it safe to unblock these operations? > > Why do they have to be blocked for non-replication users?
hidden_disk and secondary disk are opened as backing file, so it is blocked for non-replication users. What can I do if I don't unblock it and want to do backup? Thanks Wen Congyang > > Stefan > . >
