block: use iter_ubuf for single range
authorKeith Busch <kbusch@kernel.org>
Thu, 5 Jan 2023 19:07:34 +0000 (11:07 -0800)
committerJens Axboe <axboe@kernel.dk>
Wed, 11 Jan 2023 17:31:49 +0000 (10:31 -0700)
commitd46aa786fa53cbc92593089374e49c94fd9063ae
tree7ff7c5e0d2fffecac8d4e0eec74cb5729e8b0517
parent4397a17c1dc53f436285f372432dd1aea44e7953
block: use iter_ubuf for single range

This is more efficient than iter_iov.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[axboe: fold in iovec assumption fix]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-map.c