tree 441b9c9b16d55c157db90c499ba4fd2821bfe60b
parent 0809e3ac62319dc7534b64f95ac37e230d740e8a
author Ming Lei <ming.lei@canonical.com> 1445354032 +0800
committer Jens Axboe <axboe@fb.com> 1445461250 -0600

block: setup bi_phys_segments after splitting

The number of bio->bi_phys_segments is always obtained
during bio splitting, so it is natural to setup it
just after bio splitting, then we can avoid to compute
nr_segment again during merge.

Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>