diff options
| -rw-r--r-- | block.c | 7 |
1 files changed, 3 insertions, 4 deletions
@@ -2882,9 +2882,9 @@ static void change_parent_backing_link(BlockDriverState *from, continue; } if (c->role == &child_backing) { - /* @from is generally not allowed to be a backing file, except for - * when @to is the overlay. In that case, @from may not be replaced - * by @to as @to's backing node. */ + /* If @from is a backing file of @to, ignore the child to avoid + * creating a loop. We only want to change the pointer of other + * parents. */ QLIST_FOREACH(to_c, &to->children, next) { if (to_c == c) { break; @@ -2895,7 +2895,6 @@ static void change_parent_backing_link(BlockDriverState *from, } } - assert(c->role != &child_backing); bdrv_ref(to); /* FIXME Are we sure that bdrv_replace_child() can't run into * &error_abort because of permissions? */ |