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

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