106 					 struct btrfs_fs_info *fs_info)  in switch_commit_roots()  argument
110 	down_write(&fs_info->commit_root_sem);  in switch_commit_roots()
120 	up_write(&fs_info->commit_root_sem);  in switch_commit_roots()
154 	struct btrfs_fs_info *fs_info = root->fs_info;  in join_transaction()  local
156 	spin_lock(&fs_info->trans_lock);  in join_transaction()
159 	if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {  in join_transaction()
160 		spin_unlock(&fs_info->trans_lock);  in join_transaction()
164 	cur_trans = fs_info->running_transaction;  in join_transaction()
167 			spin_unlock(&fs_info->trans_lock);  in join_transaction()
171 			spin_unlock(&fs_info->trans_lock);  in join_transaction()
177 		spin_unlock(&fs_info->trans_lock);  in join_transaction()
180 	spin_unlock(&fs_info->trans_lock);  in join_transaction()
199 	spin_lock(&fs_info->trans_lock);  in join_transaction()
200 	if (fs_info->running_transaction) {  in join_transaction()
207 	} else if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {  in join_transaction()
208 		spin_unlock(&fs_info->trans_lock);  in join_transaction()
240 	if (!list_empty(&fs_info->tree_mod_seq_list))  in join_transaction()
243 	if (!RB_EMPTY_ROOT(&fs_info->tree_mod_log))  in join_transaction()
246 	atomic64_set(&fs_info->tree_mod_seq, 0);  in join_transaction()
259 	list_add_tail(&cur_trans->list, &fs_info->trans_list);  in join_transaction()
261 			     fs_info->btree_inode->i_mapping);  in join_transaction()
262 	fs_info->generation++;  in join_transaction()
263 	cur_trans->transid = fs_info->generation;  in join_transaction()
264 	fs_info->running_transaction = cur_trans;  in join_transaction()
266 	spin_unlock(&fs_info->trans_lock);  in join_transaction()
282 		WARN_ON(root == root->fs_info->extent_root);  in record_root_in_trans()
297 		spin_lock(&root->fs_info->fs_roots_radix_lock);  in record_root_in_trans()
299 			spin_unlock(&root->fs_info->fs_roots_radix_lock);  in record_root_in_trans()
302 		radix_tree_tag_set(&root->fs_info->fs_roots_radix,  in record_root_in_trans()
305 		spin_unlock(&root->fs_info->fs_roots_radix_lock);  in record_root_in_trans()
350 	mutex_lock(&root->fs_info->reloc_mutex);  in btrfs_record_root_in_trans()
352 	mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_record_root_in_trans()
372 	spin_lock(&root->fs_info->trans_lock);  in wait_current_trans()
373 	cur_trans = root->fs_info->running_transaction;  in wait_current_trans()
376 		spin_unlock(&root->fs_info->trans_lock);  in wait_current_trans()
378 		wait_event(root->fs_info->transaction_wait,  in wait_current_trans()
383 		spin_unlock(&root->fs_info->trans_lock);  in wait_current_trans()
389 	if (root->fs_info->log_root_recovering)  in may_wait_transaction()
396 	    !atomic_read(&root->fs_info->open_ioctl_trans))  in may_wait_transaction()
404 	if (!root->fs_info->reloc_ctl ||  in need_reserve_reloc_root()
427 	if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))  in start_transaction()
444 	if (num_items > 0 && root != root->fs_info->chunk_root) {  in start_transaction()
445 		if (root->fs_info->quota_enabled &&  in start_transaction()
463 					  &root->fs_info->trans_block_rsv,  in start_transaction()
486 		sb_start_intwrite(root->fs_info->sb);  in start_transaction()
506 	cur_trans = root->fs_info->running_transaction;  in start_transaction()
538 		trace_btrfs_space_reservation(root->fs_info, "transaction",  in start_transaction()
540 		h->block_rsv = &root->fs_info->trans_block_rsv;  in start_transaction()
555 		sb_end_intwrite(root->fs_info->sb);  in start_transaction()
559 		btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,  in start_transaction()
646 		if (transid <= root->fs_info->last_trans_committed)  in btrfs_wait_for_commit()
650 		spin_lock(&root->fs_info->trans_lock);  in btrfs_wait_for_commit()
651 		list_for_each_entry(t, &root->fs_info->trans_list, list) {  in btrfs_wait_for_commit()
663 		spin_unlock(&root->fs_info->trans_lock);  in btrfs_wait_for_commit()
670 			if (transid > root->fs_info->last_trans_committed)  in btrfs_wait_for_commit()
676 		spin_lock(&root->fs_info->trans_lock);  in btrfs_wait_for_commit()
677 		list_for_each_entry_reverse(t, &root->fs_info->trans_list,  in btrfs_wait_for_commit()
687 		spin_unlock(&root->fs_info->trans_lock);  in btrfs_wait_for_commit()
700 	if (!atomic_read(&root->fs_info->open_ioctl_trans))  in btrfs_throttle()
707 	if (root->fs_info->global_block_rsv.space_info->full &&  in should_end_transaction()
711 	return !!btrfs_block_rsv_check(root, &root->fs_info->global_block_rsv, 5);  in should_end_transaction()
741 	struct btrfs_fs_info *info = root->fs_info;  in __btrfs_end_transaction()
795 	if (lock && !atomic_read(&root->fs_info->open_ioctl_trans) &&  in __btrfs_end_transaction()
812 		sb_end_intwrite(root->fs_info->sb);  in __btrfs_end_transaction()
831 	    test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {  in __btrfs_end_transaction()
867 	struct address_space *mapping = root->fs_info->btree_inode->i_mapping;  in btrfs_write_marked_extents()
921 	struct address_space *mapping = root->fs_info->btree_inode->i_mapping;  in btrfs_wait_marked_extents()
925 	struct btrfs_inode *btree_ino = BTRFS_I(root->fs_info->btree_inode);  in btrfs_wait_marked_extents()
1030 	struct btrfs_root *tree_root = root->fs_info->tree_root;  in update_cowonly_root()
1063 	struct btrfs_fs_info *fs_info = root->fs_info;  in commit_cowonly_roots()  local
1070 	eb = btrfs_lock_root_node(fs_info->tree_root);  in commit_cowonly_roots()
1071 	ret = btrfs_cow_block(trans, fs_info->tree_root, eb, NULL,  in commit_cowonly_roots()
1083 	ret = btrfs_run_dev_stats(trans, root->fs_info);  in commit_cowonly_roots()
1086 	ret = btrfs_run_dev_replace(trans, root->fs_info);  in commit_cowonly_roots()
1089 	ret = btrfs_run_qgroups(trans, root->fs_info);  in commit_cowonly_roots()
1102 	while (!list_empty(&fs_info->dirty_cowonly_roots)) {  in commit_cowonly_roots()
1103 		next = fs_info->dirty_cowonly_roots.next;  in commit_cowonly_roots()
1108 		if (root != fs_info->extent_root)  in commit_cowonly_roots()
1128 	if (!list_empty(&fs_info->dirty_cowonly_roots))  in commit_cowonly_roots()
1131 	list_add_tail(&fs_info->extent_root->dirty_list,  in commit_cowonly_roots()
1133 	btrfs_after_dev_replace_commit(fs_info);  in commit_cowonly_roots()
1145 	spin_lock(&root->fs_info->trans_lock);  in btrfs_add_dead_root()
1147 		list_add_tail(&root->root_list, &root->fs_info->dead_roots);  in btrfs_add_dead_root()
1148 	spin_unlock(&root->fs_info->trans_lock);  in btrfs_add_dead_root()
1158 	struct btrfs_fs_info *fs_info = root->fs_info;  in commit_fs_roots()  local
1163 	spin_lock(&fs_info->fs_roots_radix_lock);  in commit_fs_roots()
1165 		ret = radix_tree_gang_lookup_tag(&fs_info->fs_roots_radix,  in commit_fs_roots()
1173 			radix_tree_tag_clear(&fs_info->fs_roots_radix,  in commit_fs_roots()
1176 			spin_unlock(&fs_info->fs_roots_radix_lock);  in commit_fs_roots()
1195 			err = btrfs_update_root(trans, fs_info->tree_root,  in commit_fs_roots()
1198 			spin_lock(&fs_info->fs_roots_radix_lock);  in commit_fs_roots()
1203 	spin_unlock(&fs_info->fs_roots_radix_lock);  in commit_fs_roots()
1213 	struct btrfs_fs_info *info = root->fs_info;  in btrfs_defrag_root()
1231 		if (btrfs_fs_closing(root->fs_info) || ret != -EAGAIN)  in btrfs_defrag_root()
1234 		if (btrfs_defrag_cancelled(root->fs_info)) {  in btrfs_defrag_root()
1254 				   struct btrfs_fs_info *fs_info,  in create_pending_snapshot()  argument
1259 	struct btrfs_root *tree_root = fs_info->tree_root;  in create_pending_snapshot()
1410 	ret = btrfs_qgroup_inherit(trans, fs_info,  in create_pending_snapshot()
1446 	pending->snap = btrfs_read_fs_root_no_name(root->fs_info, &key);  in create_pending_snapshot()
1484 	ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root, new_uuid.b,  in create_pending_snapshot()
1491 		ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,  in create_pending_snapshot()
1516 					     struct btrfs_fs_info *fs_info)  in create_pending_snapshots()  argument
1524 		ret = create_pending_snapshot(trans, fs_info, pending);  in create_pending_snapshots()
1536 	super = root->fs_info->super_copy;  in update_super_roots()
1538 	root_item = &root->fs_info->chunk_root->root_item;  in update_super_roots()
1543 	root_item = &root->fs_info->tree_root->root_item;  in update_super_roots()
1549 	if (root->fs_info->update_uuid_tree_gen)  in update_super_roots()
1586 	wait_event(root->fs_info->transaction_blocked_wait,  in wait_current_trans_commit_start()
1598 	wait_event(root->fs_info->transaction_wait,  in wait_current_trans_commit_start_and_unblock()
1624 		     &ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],  in do_async_commit()
1665 			&root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],  in btrfs_commit_transaction_async()
1694 	spin_lock(&root->fs_info->trans_lock);  in cleanup_transaction()
1704 	if (cur_trans == root->fs_info->running_transaction) {  in cleanup_transaction()
1706 		spin_unlock(&root->fs_info->trans_lock);  in cleanup_transaction()
1710 		spin_lock(&root->fs_info->trans_lock);  in cleanup_transaction()
1712 	spin_unlock(&root->fs_info->trans_lock);  in cleanup_transaction()
1716 	spin_lock(&root->fs_info->trans_lock);  in cleanup_transaction()
1717 	if (cur_trans == root->fs_info->running_transaction)  in cleanup_transaction()
1718 		root->fs_info->running_transaction = NULL;  in cleanup_transaction()
1719 	spin_unlock(&root->fs_info->trans_lock);  in cleanup_transaction()
1722 		sb_end_intwrite(root->fs_info->sb);  in cleanup_transaction()
1730 	btrfs_scrub_cancel(root->fs_info);  in cleanup_transaction()
1735 static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)  in btrfs_start_delalloc_flush()  argument
1737 	if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))  in btrfs_start_delalloc_flush()
1738 		return btrfs_start_delalloc_roots(fs_info, 1, -1);  in btrfs_start_delalloc_flush()
1742 static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info)  in btrfs_wait_delalloc_flush()  argument
1744 	if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))  in btrfs_wait_delalloc_flush()
1745 		btrfs_wait_ordered_roots(fs_info, -1);  in btrfs_wait_delalloc_flush()
1750 			   struct btrfs_fs_info *fs_info)  in btrfs_wait_pending_ordered()  argument
1754 	spin_lock(&fs_info->trans_lock);  in btrfs_wait_pending_ordered()
1760 		spin_unlock(&fs_info->trans_lock);  in btrfs_wait_pending_ordered()
1765 		spin_lock(&fs_info->trans_lock);  in btrfs_wait_pending_ordered()
1767 	spin_unlock(&fs_info->trans_lock);  in btrfs_wait_pending_ordered()
1775 	struct btrfs_inode *btree_ino = BTRFS_I(root->fs_info->btree_inode);  in btrfs_commit_transaction()
1835 		mutex_lock(&root->fs_info->ro_block_group_mutex);  in btrfs_commit_transaction()
1840 		mutex_unlock(&root->fs_info->ro_block_group_mutex);  in btrfs_commit_transaction()
1850 	spin_lock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1853 		spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1868 	wake_up(&root->fs_info->transaction_blocked_wait);  in btrfs_commit_transaction()
1870 	if (cur_trans->list.prev != &root->fs_info->trans_list) {  in btrfs_commit_transaction()
1875 			spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1884 			spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1887 		spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1892 	ret = btrfs_start_delalloc_flush(root->fs_info);  in btrfs_commit_transaction()
1908 	btrfs_wait_delalloc_flush(root->fs_info);  in btrfs_commit_transaction()
1910 	btrfs_wait_pending_ordered(cur_trans, root->fs_info);  in btrfs_commit_transaction()
1918 	spin_lock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1920 	spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
1934 	mutex_lock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
1941 	ret = create_pending_snapshots(trans, root->fs_info);  in btrfs_commit_transaction()
1943 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
1959 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
1965 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
1990 	mutex_lock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
1994 		mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
1995 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
2003 	btrfs_apply_pending_changes(root->fs_info);  in btrfs_commit_transaction()
2008 	btrfs_free_log_root_tree(trans, root->fs_info);  in btrfs_commit_transaction()
2012 		mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
2013 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
2023 		mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
2024 		mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
2030 	cur_trans = root->fs_info->running_transaction;  in btrfs_commit_transaction()
2032 	btrfs_set_root_node(&root->fs_info->tree_root->root_item,  in btrfs_commit_transaction()
2033 			    root->fs_info->tree_root->node);  in btrfs_commit_transaction()
2034 	list_add_tail(&root->fs_info->tree_root->dirty_list,  in btrfs_commit_transaction()
2037 	btrfs_set_root_node(&root->fs_info->chunk_root->root_item,  in btrfs_commit_transaction()
2038 			    root->fs_info->chunk_root->node);  in btrfs_commit_transaction()
2039 	list_add_tail(&root->fs_info->chunk_root->dirty_list,  in btrfs_commit_transaction()
2042 	switch_commit_roots(cur_trans, root->fs_info);  in btrfs_commit_transaction()
2049 	btrfs_set_super_log_root(root->fs_info->super_copy, 0);  in btrfs_commit_transaction()
2050 	btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);  in btrfs_commit_transaction()
2051 	memcpy(root->fs_info->super_for_commit, root->fs_info->super_copy,  in btrfs_commit_transaction()
2052 	       sizeof(*root->fs_info->super_copy));  in btrfs_commit_transaction()
2054 	btrfs_update_commit_device_size(root->fs_info);  in btrfs_commit_transaction()
2060 	spin_lock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
2062 	root->fs_info->running_transaction = NULL;  in btrfs_commit_transaction()
2063 	spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
2064 	mutex_unlock(&root->fs_info->reloc_mutex);  in btrfs_commit_transaction()
2066 	wake_up(&root->fs_info->transaction_wait);  in btrfs_commit_transaction()
2070 		btrfs_error(root->fs_info, ret,  in btrfs_commit_transaction()
2072 		mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
2078 		mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
2086 	mutex_unlock(&root->fs_info->tree_log_mutex);  in btrfs_commit_transaction()
2091 		btrfs_clear_space_info_full(root->fs_info);  in btrfs_commit_transaction()
2093 	root->fs_info->last_trans_committed = cur_trans->transid;  in btrfs_commit_transaction()
2101 	spin_lock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
2103 	spin_unlock(&root->fs_info->trans_lock);  in btrfs_commit_transaction()
2109 		sb_end_intwrite(root->fs_info->sb);  in btrfs_commit_transaction()
2120 	if (current != root->fs_info->transaction_kthread)  in btrfs_commit_transaction()
2134 	btrfs_warn(root->fs_info, "Skipping commit of aborted transaction.");  in btrfs_commit_transaction()
2155 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_clean_one_deleted_snapshot()  local
2157 	spin_lock(&fs_info->trans_lock);  in btrfs_clean_one_deleted_snapshot()
2158 	if (list_empty(&fs_info->dead_roots)) {  in btrfs_clean_one_deleted_snapshot()
2159 		spin_unlock(&fs_info->trans_lock);  in btrfs_clean_one_deleted_snapshot()
2162 	root = list_first_entry(&fs_info->dead_roots,  in btrfs_clean_one_deleted_snapshot()
2165 	spin_unlock(&fs_info->trans_lock);  in btrfs_clean_one_deleted_snapshot()
2180 void btrfs_apply_pending_changes(struct btrfs_fs_info *fs_info)  in btrfs_apply_pending_changes()  argument
2185 	prev = xchg(&fs_info->pending_changes, 0);  in btrfs_apply_pending_changes()
2191 		btrfs_set_opt(fs_info->mount_opt, INODE_MAP_CACHE);  in btrfs_apply_pending_changes()
2196 		btrfs_clear_opt(fs_info->mount_opt, INODE_MAP_CACHE);  in btrfs_apply_pending_changes()
2201 		btrfs_debug(fs_info, "pending commit done");  in btrfs_apply_pending_changes()
2205 		btrfs_warn(fs_info,  in btrfs_apply_pending_changes()