1 set_bit 2 clear_bit 3 __clear_bit 4 __set_bit 5 test_and_set_bit 6 find_last_bit 7 change_bit 8 xfs_next_bit 9 find_next_bit 10 find_first_bit 11 __test_and_set_bit 12 sync_set_bit 13 bitmap_weight 14 bitmap_intersects 15 bitmap_empty