160 		if (!fs_info->log_root_tree)  in start_log_trans()
2943 		ret = btrfs_insert_root(trans, fs_info->log_root_tree,  in update_log_root()
2946 		ret = btrfs_update_root(trans, fs_info->log_root_tree,  in update_log_root()
3044 	struct btrfs_root *log_root_tree = fs_info->log_root_tree;  in btrfs_sync_log()  local
3137 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3138 	atomic_inc(&log_root_tree->log_batch);  in btrfs_sync_log()
3139 	atomic_inc(&log_root_tree->log_writers);  in btrfs_sync_log()
3141 	index2 = log_root_tree->log_transid % 2;  in btrfs_sync_log()
3142 	list_add_tail(&root_log_ctx.list, &log_root_tree->log_ctxs[index2]);  in btrfs_sync_log()
3143 	root_log_ctx.log_transid = log_root_tree->log_transid;  in btrfs_sync_log()
3145 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3147 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3156 	if (atomic_dec_and_test(&log_root_tree->log_writers)) {  in btrfs_sync_log()
3158 		cond_wake_up_nomb(&log_root_tree->log_writer_wait);  in btrfs_sync_log()
3170 			mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3174 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3179 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {  in btrfs_sync_log()
3182 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3188 	if (atomic_read(&log_root_tree->log_commit[index2])) {  in btrfs_sync_log()
3191 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
3193 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3198 	ASSERT(root_log_ctx.log_transid == log_root_tree->log_transid);  in btrfs_sync_log()
3199 	atomic_set(&log_root_tree->log_commit[index2], 1);  in btrfs_sync_log()
3201 	if (atomic_read(&log_root_tree->log_commit[(index2 + 1) % 2])) {  in btrfs_sync_log()
3202 		wait_log_commit(log_root_tree,  in btrfs_sync_log()
3206 	wait_for_writer(log_root_tree);  in btrfs_sync_log()
3215 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3221 					 &log_root_tree->dirty_log_pages,  in btrfs_sync_log()
3227 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3232 		ret = btrfs_wait_tree_log_extents(log_root_tree,  in btrfs_sync_log()
3236 		mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3241 				 log_root_tree->node->start);  in btrfs_sync_log()
3243 				       btrfs_header_level(log_root_tree->node));  in btrfs_sync_log()
3245 	log_root_tree->log_transid++;  in btrfs_sync_log()
3246 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3268 	mutex_lock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3269 	btrfs_remove_all_log_ctxs(log_root_tree, index2, ret);  in btrfs_sync_log()
3271 	log_root_tree->log_transid_committed++;  in btrfs_sync_log()
3272 	atomic_set(&log_root_tree->log_commit[index2], 0);  in btrfs_sync_log()
3273 	mutex_unlock(&log_root_tree->log_mutex);  in btrfs_sync_log()
3280 	cond_wake_up(&log_root_tree->log_commit_wait[index2]);  in btrfs_sync_log()
3336 	if (fs_info->log_root_tree) {  in btrfs_free_log_root_tree()
3337 		free_log_tree(trans, fs_info->log_root_tree);  in btrfs_free_log_root_tree()
3338 		fs_info->log_root_tree = NULL;  in btrfs_free_log_root_tree()
6241 int btrfs_recover_log_trees(struct btrfs_root *log_root_tree)  in btrfs_recover_log_trees()  argument
6250 	struct btrfs_fs_info *fs_info = log_root_tree->fs_info;  in btrfs_recover_log_trees()
6271 	ret = walk_log_tree(trans, log_root_tree, &wc);  in btrfs_recover_log_trees()
6284 		ret = btrfs_search_slot(NULL, log_root_tree, &key, path, 0, 0);  in btrfs_recover_log_trees()
6302 		log = btrfs_read_fs_root(log_root_tree, &found_key);  in btrfs_recover_log_trees()
6385 	free_extent_buffer(log_root_tree->node);  in btrfs_recover_log_trees()
6386 	log_root_tree->log_root = NULL;  in btrfs_recover_log_trees()
6388 	kfree(log_root_tree);  in btrfs_recover_log_trees()