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blockdev: enable non-root nodes for transaction drive-backup source

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We forget to enable it for transaction .prepare, while it is already
enabled in do_drive_backup since commit a2d665c1bc
    "blockdev: loosen restrictions on drive-backup source node"

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190618140804.59214-1-vsementsov@virtuozzo.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-06-18 17:08:04 +03:00 committed by Max Reitz
parent 1cc354ac98
commit 85c9d133fb
1 changed files with 1 additions and 1 deletions
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blockdev.c
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@ -1774,7 +1774,7 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
backup = common->action->u.drive_backup.data;
bs = qmp_get_root_bs(backup->device, errp);
bs = bdrv_lookup_bs(backup->device, backup->device, errp);
if (!bs) {
return;
}