Skip to content
  • Eric Sandeen's avatar
    [S390] fix ext2_find_next_bit · 152382af
    Eric Sandeen authored
    ext4 does not work on s390 because ext2_find_next_bit is broken. Fortunately
    this function is only used by ext4. The function uses ffs which does not work
    analog to ffz. The result of ffs has an offset of 1 which is not taken into
    account. To fix this use the low level __ffs_word function directly instead
    of the ill defined ffs.
    In addition the patch improves find_next_zero_bit and ext2_find_next_zero_bit
    by passing the bit offset into __ffz_word instead of adding it after the
    function call returned.
    Signed-off-by: default avatarEric Sandeen <>
    Signed-off-by: default avatarMartin Schwidefsky <>