On Mon, Oct 31, 2016 at 11:29 PM, Christoph Hellwig <h...@infradead.org> wrote: > 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.leim...@gmail.com> > > It would be really nice to have a comment in the code why it's > even checking for multiple segments. >
OK, will add comment about using !bio_multiple_segments(rq->bio) to replace 'rq->bio->bi_vcnt == 1'. Thanks, Ming Lei