154 		if (!fs_info->log_root_tree)  in start_log_trans()
2854 		ret = btrfs_insert_root(trans, fs_info->log_root_tree,  in update_log_root()
2857 		ret = btrfs_update_root(trans, fs_info->log_root_tree,  in update_log_root()
2955 	struct btrfs_root *log_root_tree = fs_info->log_root_tree;  in btrfs_sync_log()  local
3033 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3034 	atomic_inc(&log_root_tree->log_batch);  in btrfs_sync_log()
3035 	atomic_inc(&log_root_tree->log_writers);  in btrfs_sync_log()
3037 	index2 = log_root_tree->log_transid % 2;  in btrfs_sync_log()
3038 	list_add_tail(&root_log_ctx.list, &log_root_tree->log_ctxs[index2]);  in btrfs_sync_log()
3039 	root_log_ctx.log_transid = log_root_tree->log_transid;  in btrfs_sync_log()
3041 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3045 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3046 	if (atomic_dec_and_test(&log_root_tree->log_writers)) {  in btrfs_sync_log()
3048 		cond_wake_up_nomb(&log_root_tree->log_writer_wait);  in btrfs_sync_log()
3060 			mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3064 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3069 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {  in btrfs_sync_log()
3072 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3078 	if (atomic_read(&log_root_tree->log_commit[index2])) {  in btrfs_sync_log()
3081 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
3083 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3088 	ASSERT(root_log_ctx.log_transid == log_root_tree->log_transid);  in btrfs_sync_log()
3089 	atomic_set(&log_root_tree->log_commit[index2], 1);  in btrfs_sync_log()
3091 	if (atomic_read(&log_root_tree->log_commit[(index2 + 1) % 2])) {  in btrfs_sync_log()
3092 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
3096 	wait_for_writer(log_root_tree);  in btrfs_sync_log()
3105 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3111 					 &log_root_tree->dirty_log_pages,  in btrfs_sync_log()
3117 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3122 		ret = btrfs_wait_tree_log_extents(log_root_tree,  in btrfs_sync_log()
3126 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3131 				 log_root_tree->node->start);  in btrfs_sync_log()
3133 				       btrfs_header_level(log_root_tree->node));  in btrfs_sync_log()
3135 	log_root_tree->log_transid++;  in btrfs_sync_log()
3136 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3158 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3159 	btrfs_remove_all_log_ctxs(log_root_tree, index2, ret);  in btrfs_sync_log()
3161 	log_root_tree->log_transid_committed++;  in btrfs_sync_log()
3162 	atomic_set(&log_root_tree->log_commit[index2], 0);  in btrfs_sync_log()
3163 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3170 	cond_wake_up(&log_root_tree->log_commit_wait[index2]);  in btrfs_sync_log()
3235 	if (fs_info->log_root_tree) {  in btrfs_free_log_root_tree()
3236 		free_log_tree(trans, fs_info->log_root_tree);  in btrfs_free_log_root_tree()
3237 		fs_info->log_root_tree = NULL;  in btrfs_free_log_root_tree()
5784 int btrfs_recover_log_trees(struct btrfs_root *log_root_tree)  in btrfs_recover_log_trees()  argument
5793 	struct btrfs_fs_info *fs_info = log_root_tree->fs_info;  in btrfs_recover_log_trees()
5814 	ret = walk_log_tree(trans, log_root_tree, &wc);  in btrfs_recover_log_trees()
5827 		ret = btrfs_search_slot(NULL, log_root_tree, &key, path, 0, 0);  in btrfs_recover_log_trees()
5845 		log = btrfs_read_fs_root(log_root_tree, &found_key);  in btrfs_recover_log_trees()
5928 	free_extent_buffer(log_root_tree->node);  in btrfs_recover_log_trees()
5929 	log_root_tree->log_root = NULL;  in btrfs_recover_log_trees()
5931 	kfree(log_root_tree);  in btrfs_recover_log_trees()