• Jens Axboe's avatar
    block: remove struct request buffer member · b4f42e28
    Jens Axboe authored
    This was used in the olden days, back when onions were proper
    yellow. Basically it mapped to the current buffer to be
    transferred. With highmem being added more than a decade ago,
    most drivers map pages out of a bio, and rq->buffer isn't
    pointing at anything valid.
    Convert old style drivers to just use bio_data().
    For the discard payload use case, just reference the page
    in the bio.
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
blk-map.c 8.2 KB