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block: setup bi_phys_segments after splitting
authorMing Lei <ming.lei@canonical.com>
Tue, 20 Oct 2015 15:13:52 +0000 (23:13 +0800)
committerJens Axboe <axboe@fb.com>
Wed, 21 Oct 2015 21:00:50 +0000 (15:00 -0600)
commitbdced438acd83ad83a6c6fc7f50099b820245ddb
tree441b9c9b16d55c157db90c499ba4fd2821bfe60btree
parent0809e3ac62319dc7534b64f95ac37e230d740e8acommit | diff
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>
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