Display of the blocking snapshots list sorted openzfs#12751

Signed-off-by: Artem-OSSRevival <[email protected]>

Author: Artem-OSSRevival

cmd/zfs/zfs_main.c

@@ -4443,7 +4443,7 @@ zfs_do_rollback(int argc, char **argv)
 	if (cb.cb_create > 0)
 		min_txg = cb.cb_create;
 
-	if ((ret = zfs_iter_snapshots_v2(zhp, 0, rollback_check, &cb,
+	if ((ret = zfs_iter_snapshots_sorted_v2(zhp, 0, rollback_check, &cb,
 	    min_txg, 0)) != 0)
 		goto out;
 	if ((ret = zfs_iter_bookmarks_v2(zhp, 0, rollback_check, &cb)) != 0)

lib/libzfs/libzfs_iter.c

@@ -570,7 +570,7 @@ iter_dependents_cb(zfs_handle_t *zhp, void *arg)
 		err = zfs_iter_filesystems_v2(zhp, ida->flags,
 		    iter_dependents_cb, ida);
 		if (err == 0)
-			err = zfs_iter_snapshots_v2(zhp, ida->flags,
+			err = zfs_iter_snapshots_sorted_v2(zhp, ida->flags,
 			    iter_dependents_cb, ida, 0, 0);
 		ida->stack = isf.next;
 	}