Re: [RFC v2 1/3] block: Introduce blk_bio_map_sg() to map one bio

From	Jens Axboe <axboe@kernel.dk>
Newsgroups	linux.kernel
Subject	Re: [RFC v2 1/3] block: Introduce blk_bio_map_sg() to map one bio
Date	2016-06-03 16:40 +0200
Message-ID	<rFYqt-4lp-5@gated-at.bofh.it> (permalink)
References	<rDnY5-2JR-7@gated-at.bofh.it> <rDnY5-2JR-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 05/27/2016 05:11 AM, Baolin Wang wrote:
> In dm-crypt, it need to map one bio to scatterlist for improving the
> hardware engine encryption efficiency. Thus this patch introduces the
> blk_bio_map_sg() function to map one bio with scatterlists.
>
> For avoiding the duplicated code in __blk_bios_map_sg() function, add
> one parameter to distinguish bio map or request map.

Just detach the bio in blk_bio_map_sg() instead of adding a separate 
case (and argument) for it in __blk_bios_map_sg().

-- 
Jens Axboe

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Re: [RFC v2 1/3] block: Introduce blk_bio_map_sg() to map one bio Jens Axboe <axboe@kernel.dk> - 2016-06-03 16:40 +0200
  Re: [RFC v2 1/3] block: Introduce blk_bio_map_sg() to map one bio Baolin Wang <baolin.wang@linaro.org> - 2016-06-06 07:10 +0200

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