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| author | Asias He <asias@redhat.com> | 2012-08-02 23:42:04 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-08-02 23:42:04 +0200 |
| commit | 85b9f66a41eb8ee3f1dfc95707412705463cdd97 (patch) | |
| tree | fab0a84fef56bb7f16d6adfb9d8bbb6cfa5cd75c /block/genhd.c | |
| parent | 963ab9e5da95c654bb3ab937cc478de4f7088a96 (diff) | |
| download | op-kernel-dev-85b9f66a41eb8ee3f1dfc95707412705463cdd97.zip op-kernel-dev-85b9f66a41eb8ee3f1dfc95707412705463cdd97.tar.gz | |
block: Add blk_bio_map_sg() helper
Add a helper to map a bio to a scatterlist, modelled after
blk_rq_map_sg.
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: Christoph Hellwig <hch@lst.de>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/genhd.c')
0 files changed, 0 insertions, 0 deletions
