• Asias He's avatar
    block: Add blk_bio_map_sg() helper · 85b9f66a
    Asias He authored
    Add a helper to map a bio to a scatterlist, modelled after
    This helper is useful for any driver that wants to create
    a scatterlist from its ->make_request_fn method.
    Changes in v2:
     - Use __blk_segment_map_sg to avoid duplicated code
     - Add cocbook style function comment
    Cc: Rusty Russell <rusty@rustcorp.com.au>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: Shaohua Li <shli@kernel.org>
    Cc: "Michael S. Tsirkin" <mst@redhat.com>
    Cc: kvm@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org
    Cc: virtualization@lists.linux-foundation.org
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Signed-off-by: default avatarMinchan Kim <minchan.kim@gmail.com>
    Signed-off-by: default avatarAsias He <asias@redhat.com>
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
blk-merge.c 13.2 KB