1785 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1790 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1791 	read_lock(&em_tree->lock);  in find_next_chunk()
1792 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1797 	read_unlock(&em_tree->lock);  in find_next_chunk()
3039 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
3042 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
3043 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
3044 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
3045 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
5380 	struct extent_map_tree *em_tree;  in create_chunk()  local
5422 	em_tree = &info->mapping_tree;  in create_chunk()
5423 	write_lock(&em_tree->lock);  in create_chunk()
5424 	ret = add_extent_mapping(em_tree, em, 0);  in create_chunk()
5426 		write_unlock(&em_tree->lock);  in create_chunk()
5430 	write_unlock(&em_tree->lock);  in create_chunk()
5456 	write_lock(&em_tree->lock);  in create_chunk()
5457 	remove_extent_mapping(em_tree, em);  in create_chunk()
5458 	write_unlock(&em_tree->lock);  in create_chunk()
7707 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
7716 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
7717 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
7718 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
7808 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
7813 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
7814 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
7827 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()