ext2_clear_bit_atomic    9 include/asm-generic/bitops/ext2-atomic-setbit.h #define ext2_clear_bit_atomic(l, nr, addr)	test_and_clear_bit_le(nr, addr)
ext2_clear_bit_atomic   17 include/asm-generic/bitops/ext2-atomic.h #define ext2_clear_bit_atomic(lock, nr, addr)		\