Messages in this thread | | | Date | Thu, 14 Jun 2012 11:31:56 +0900 | From | Tejun Heo <> | Subject | Re: [PATCH RFC 1/2] block: Add blk_bio_map_sg() helper |
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On Wed, Jun 13, 2012 at 03:41:46PM +0800, Asias He wrote: > 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.
This may not be possible but I really wanna avoid having two copies of that complex logic. Any chance blk_rq_map_bio() can be implemented in a way that allows blk_rq_map_sg() can be built on top of it? Also, please include proper docbook style function comment on new public API functions.
Thanks.
-- tejun
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