re_exist          305 fs/btrfs/reada.c 	struct reada_extent *re_exist = NULL;
re_exist          391 fs/btrfs/reada.c 		re_exist = radix_tree_lookup(&fs_info->reada_tree, index);
re_exist          392 fs/btrfs/reada.c 		re_exist->refcnt++;
re_exist          480 fs/btrfs/reada.c 	return re_exist;