161 		if (!root->fs_info->log_root_tree)  in start_log_trans()
2631 		ret = btrfs_insert_root(trans, log->fs_info->log_root_tree,  in update_log_root()
2634 		ret = btrfs_update_root(trans, log->fs_info->log_root_tree,  in update_log_root()
2731 	struct btrfs_root *log_root_tree = root->fs_info->log_root_tree;  in btrfs_sync_log()  local
2811 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2812 	atomic_inc(&log_root_tree->log_batch);  in btrfs_sync_log()
2813 	atomic_inc(&log_root_tree->log_writers);  in btrfs_sync_log()
2815 	index2 = log_root_tree->log_transid % 2;  in btrfs_sync_log()
2816 	list_add_tail(&root_log_ctx.list, &log_root_tree->log_ctxs[index2]);  in btrfs_sync_log()
2817 	root_log_ctx.log_transid = log_root_tree->log_transid;  in btrfs_sync_log()
2819 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2823 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2824 	if (atomic_dec_and_test(&log_root_tree->log_writers)) {  in btrfs_sync_log()
2828 		if (waitqueue_active(&log_root_tree->log_writer_wait))  in btrfs_sync_log()
2829 			wake_up(&log_root_tree->log_writer_wait);  in btrfs_sync_log()
2841 			mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2846 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2851 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {  in btrfs_sync_log()
2853 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2859 	if (atomic_read(&log_root_tree->log_commit[index2])) {  in btrfs_sync_log()
2864 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
2866 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2871 	ASSERT(root_log_ctx.log_transid == log_root_tree->log_transid);  in btrfs_sync_log()
2872 	atomic_set(&log_root_tree->log_commit[index2], 1);  in btrfs_sync_log()
2874 	if (atomic_read(&log_root_tree->log_commit[(index2 + 1) % 2])) {  in btrfs_sync_log()
2875 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
2879 	wait_for_writer(log_root_tree);  in btrfs_sync_log()
2889 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2894 	ret = btrfs_write_marked_extents(log_root_tree,  in btrfs_sync_log()
2895 					 &log_root_tree->dirty_log_pages,  in btrfs_sync_log()
2902 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2907 		ret = btrfs_wait_marked_extents(log_root_tree,  in btrfs_sync_log()
2908 						&log_root_tree->dirty_log_pages,  in btrfs_sync_log()
2913 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2919 				log_root_tree->node->start);  in btrfs_sync_log()
2921 				btrfs_header_level(log_root_tree->node));  in btrfs_sync_log()
2923 	log_root_tree->log_transid++;  in btrfs_sync_log()
2924 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2950 	btrfs_remove_all_log_ctxs(log_root_tree, index2, ret);  in btrfs_sync_log()
2952 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2953 	log_root_tree->log_transid_committed++;  in btrfs_sync_log()
2954 	atomic_set(&log_root_tree->log_commit[index2], 0);  in btrfs_sync_log()
2955 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
2960 	if (waitqueue_active(&log_root_tree->log_commit_wait[index2]))  in btrfs_sync_log()
2961 		wake_up(&log_root_tree->log_commit_wait[index2]);  in btrfs_sync_log()
3034 	if (fs_info->log_root_tree) {  in btrfs_free_log_root_tree()
3035 		free_log_tree(trans, fs_info->log_root_tree);  in btrfs_free_log_root_tree()
3036 		fs_info->log_root_tree = NULL;  in btrfs_free_log_root_tree()
5432 int btrfs_recover_log_trees(struct btrfs_root *log_root_tree)  in btrfs_recover_log_trees()  argument
5441 	struct btrfs_fs_info *fs_info = log_root_tree->fs_info;  in btrfs_recover_log_trees()
5462 	ret = walk_log_tree(trans, log_root_tree, &wc);  in btrfs_recover_log_trees()
5475 		ret = btrfs_search_slot(NULL, log_root_tree, &key, path, 0, 0);  in btrfs_recover_log_trees()
5493 		log = btrfs_read_fs_root(log_root_tree, &found_key);  in btrfs_recover_log_trees()
5559 	free_extent_buffer(log_root_tree->node);  in btrfs_recover_log_trees()
5560 	log_root_tree->log_root = NULL;  in btrfs_recover_log_trees()
5562 	kfree(log_root_tree);  in btrfs_recover_log_trees()