• Jens Axboe's avatar
    [BLOCK] Unify the seperate read/write io stat fields into arrays · a362357b
    Jens Axboe authored
    Instead of having ->read_sectors and ->write_sectors, combine the two
    into ->sectors[2] and similar for the other fields. This saves a branch
    several places in the io path, since we don't have to care for what the
    actual io direction is. On my x86-64 box, that's 200 bytes less text in
    just the core (not counting the various drivers).
    Signed-off-by: default avatarJens Axboe <axboe@suse.de>
    a362357b
genhd.h 13.5 KB