tree acafef3a5b3713da5c702c9b7ba95a7a4a33da12
parent 094f394df6a33f959888d445b362a9086823a2fb
author Heinz Mauelshagen <heinzm@redhat.com> 1468926984 +0200
committer Mike Snitzer <snitzer@redhat.com> 1468942628 -0400

dm raid: fix random optimal_io_size for raid0

raid_io_hints() was retrieving the number of data stripes used for the
calculation of io_opt from struct r5conf, which is not defined for raid0
mappings.

Base the calculation on the in-core raid_set structure instead.

Also, adjust to use to_bytes() for the sector -> bytes conversion
throughout.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>