diff mbox

[v3,1/2] block: allow blockdev-backup from any source

Message ID 20180628212544.21854-2-jsnow@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

John Snow June 28, 2018, 9:25 p.m. UTC 
In the case of image fleecing, the node we choose as the source
for a blockdev-backup is going to be both a root node AND the
backing node for the exported image. It does not qualify as a root
image in this case.

Loosen the restriction.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
 blockdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/blockdev.c b/blockdev.c
index 58d7570932..526f8b60be 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3517,7 +3517,7 @@  BlockJob *do_blockdev_backup(BlockdevBackup *backup, JobTxn *txn,
         backup->compress = false;
     }
 
-    bs = qmp_get_root_bs(backup->device, errp);
+    bs = bdrv_lookup_bs(backup->device, backup->device, errp);
     if (!bs) {
         return NULL;
     }