On Sat, Oct 29, 2016 at 04:08:02PM +0800, Ming Lei wrote:

For a non-cloned bio, bio_add_page() only returns failure when
the io vec table is full, but in that case, bio->bi_vcnt can't
be zero at all.

So remove the impossible failure handling.

Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>

Looks good,

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