Eric Lee / smarc-fsl-linux-kernel

15 Mar, 2010

1 commit

  • 2cda2728a   block: Fix overrun in lcm() and move it to lib ... Browse Code ยป

    lcm() was defined to take integer-sized arguments. The supplied
    arguments are multiplied, however, causing us to overflow given
    sufficiently large input. That in turn led to incorrect optimal I/O
    size reporting in some cases (RAID over RAID).

    Switch lcm() over to unsigned long similar to gcd() and move the
    function from blk-settings.c to lib.

    Signed-off-by: Martin K. Petersen
    Signed-off-by: Jens Axboe

    Martin K. Petersen