[dm-devel] [PATCH V12 18/20] block: document usage of bio iterator helpers

[Christoph Hellwig]

On Mon, Nov 26, 2018 at 10:17:18AM +0800, Ming Lei wrote:
> Now multi-page bvec is supported, some helpers may return page by
> page, meantime some may return segment by segment, this patch
> documents the usage.
> 
> Signed-off-by: Ming Lei <ming.lei at redhat.com>

Looks fine,

Reviewed-by: Christoph Hellwig <hch at lst.de>