tree 70219779b021ec7cd2d32bc1091208a126fe0bec
parent e0af29171aa8912e1ca95023b75ef336cd70d661
author Ming Lei <ming.lei@canonical.com> 1456501252 +0800
committer Jens Axboe <axboe@fb.com> 1457041369 -0700

block: get the 1st and last bvec via helpers

This patch applies the two introduced helpers to
figure out the 1st and last bvec, and fixes the
original way after bio splitting.

Cc: stable@vger.kernel.org
Reported-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>