old_root_bytenr  1088 fs/btrfs/transaction.c 	u64 old_root_bytenr;
old_root_bytenr  1096 fs/btrfs/transaction.c 		old_root_bytenr = btrfs_root_bytenr(&root->root_item);
old_root_bytenr  1097 fs/btrfs/transaction.c 		if (old_root_bytenr == root->node->start &&