On 5/15/20 7:40 AM, Vladimir Sementsov-Ogievskiy wrote:
It actually never worked with libvirt, as auto-generated names are
different on source and destination.
It's unsafe and useless to migrate by auto-generated node-names, so
let's forbid it.
Signed-off-by: Vladimir Sementsov-Ogievskiy
Reviewed-by: Andrey Shinkevich
---
migration/block-dirty-bitmap.c | 7 +++
1 file changed, 7 insertions(+)
Reviewed-by: Eric Blake
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index e0e081ce60..f5744c35e6 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -285,6 +285,13 @@ static int add_bitmaps_to_list(BlockDriverState *bs, const
char *bs_name)
return -1;
}
+if (bs_name[0] == '#') {
+error_report("Found bitmap '%s' in a node with auto-generated "
+ "name: %s. It can't be migrated",
Maybe compress to:
"Bitmap '%s' in auto-generated node '%s' can't be migrated"
+ bdrv_dirty_bitmap_name(bitmap), bs_name);
+return -1;
+}
+
FOR_EACH_DIRTY_BITMAP(bs, bitmap) {
if (!bdrv_dirty_bitmap_name(bitmap)) {
continue;
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
