1set_bit
2clear_bit
3__clear_bit
4__set_bit
5test_and_set_bit
6find_last_bit
7change_bit
8xfs_next_bit
9find_next_bit
10find_first_bit
11__test_and_set_bit
12sync_set_bit
13bitmap_weight
14bitmap_intersects
15bitmap_empty
16