On 5/6/20 4:34 PM, Eyal Moscovici wrote:
The mapping operation of large disks especially ones stored over a
long chain of QCOW2 files can take a long time to finish.
Additionally when mapping fails there was no way recover by
restarting the mapping from the failed location.
The new options, --start-offset and --max-length allows the user to
divide these type of map operations into shorter independent tasks.
Reviewed-by: Eric Blake <address@hidden>
This patch has some changes from v1. Among others,...
@@ -3041,6 +3045,18 @@ static int img_map(int argc, char **argv)
case OPTION_OUTPUT:
output = optarg;
break;
+ case 's':
+ start_offset = cvtnum("start offset", optarg);
+ if (start_offset < 0) {
+ return 1;
+ }
+ break;
the new semantics of cvtnum() in this series is enough of a difference
that I would have removed R-b to make sure the updated patch gets
re-reviewed, if it had been me as author. But in this case, it does
look like the changes are all addressed to comments I suggested in v1,
so I'm fine that you left my R-b.