• Jens Axboe's avatar
    bio: add support for inlining a number of bio_vecs inside the bio · 392ddc32
    Jens Axboe authored
    When we go and allocate a bio for IO, we actually do two allocations.
    One for the bio itself, and one for the bi_io_vec that holds the
    actual pages we are interested in.
    
    This feature inlines a definable amount of io vecs inside the bio
    itself, so we eliminate the bio_vec array allocation for IO's up
    to a certain size. It defaults to 4 vecs, which is typically 16k
    of IO.
    Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
    392ddc32
bio.h 17.8 KB