Re: [PATCH 09/60] dm: dm.c: replace 'bio->bi_vcnt == 1' with !bio_multiple_segments
From: Christoph Hellwig
Date: Mon Oct 31 2016 - 11:30:00 EST
On Sat, Oct 29, 2016 at 04:08:08PM +0800, Ming Lei wrote:
> Avoid to access .bi_vcnt directly, because it may be not what
> the driver expected any more after supporting multipage bvec.
>
> Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
It would be really nice to have a comment in the code why it's
even checking for multiple segments.