935 	struct extent_map_tree *em_tree = &inode->extent_tree;  in get_extent_allocation_hint()  local
939 	read_lock(&em_tree->lock);  in get_extent_allocation_hint()
940 	em = search_extent_mapping(em_tree, start, num_bytes);  in get_extent_allocation_hint()
949 			em = search_extent_mapping(em_tree, 0, 0);  in get_extent_allocation_hint()
959 	read_unlock(&em_tree->lock);  in get_extent_allocation_hint()
4765 	struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;  in btrfs_cont_expand()  local
4833 				write_lock(&em_tree->lock);  in btrfs_cont_expand()
4834 				err = add_extent_mapping(em_tree, hole_em, 1);  in btrfs_cont_expand()
4835 				write_unlock(&em_tree->lock);  in btrfs_cont_expand()
6608 	struct extent_map_tree *em_tree = &inode->extent_tree;  in btrfs_get_extent()  local
6611 	read_lock(&em_tree->lock);  in btrfs_get_extent()
6612 	em = lookup_extent_mapping(em_tree, start, len);  in btrfs_get_extent()
6613 	read_unlock(&em_tree->lock);  in btrfs_get_extent()
6791 	write_lock(&em_tree->lock);  in btrfs_get_extent()
6792 	ret = btrfs_add_extent_mapping(fs_info, em_tree, &em, start, len);  in btrfs_get_extent()
6793 	write_unlock(&em_tree->lock);  in btrfs_get_extent()
7251 	struct extent_map_tree *em_tree;  in create_io_em()  local
7260 	em_tree = &inode->extent_tree;  in create_io_em()
7284 		write_lock(&em_tree->lock);  in create_io_em()
7285 		ret = add_extent_mapping(em_tree, em, 1);  in create_io_em()
7286 		write_unlock(&em_tree->lock);  in create_io_em()
9785 	struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;  in __btrfs_prealloc_file_range()  local
9861 			write_lock(&em_tree->lock);  in __btrfs_prealloc_file_range()
9862 			ret = add_extent_mapping(em_tree, em, 1);  in __btrfs_prealloc_file_range()
9863 			write_unlock(&em_tree->lock);  in __btrfs_prealloc_file_range()