997 	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;  in check_defrag_in_cache()  local
1014 	end = count_range_bits(io_tree, &offset, offset + thresh,  in check_defrag_in_cache()
1091 	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;  in defrag_lookup_extent()  local
1108 		lock_extent_bits(io_tree, start, end, &cached);  in defrag_lookup_extent()
1110 		unlock_extent_cached(io_tree, start, end, &cached);  in defrag_lookup_extent()
1243 	tree = &BTRFS_I(inode)->io_tree;  in cluster_pages_for_defrag()
1324 	lock_extent_bits(&BTRFS_I(inode)->io_tree,  in cluster_pages_for_defrag()
1360 	clear_extent_bit(&BTRFS_I(inode)->io_tree, page_start,  in cluster_pages_for_defrag()
1373 	set_extent_defrag(&BTRFS_I(inode)->io_tree, page_start, page_end - 1,  in cluster_pages_for_defrag()
1376 	unlock_extent_cached(&BTRFS_I(inode)->io_tree,  in cluster_pages_for_defrag()
1391 	unlock_extent_cached(&BTRFS_I(inode)->io_tree,  in cluster_pages_for_defrag()