tree 4c77d6484c743c7cbd8b0138e336cb229b7194bf
parent 072792dcdfc8d5f91a26050e5665285f50afebf5
author Joe Thornber <ejt@redhat.com> 1494493654 -0400
committer Mike Snitzer <snitzer@redhat.com> 1494813272 -0400

dm cache policy smq: only demote entries in bottom half of the clean multiqueue

Heavy IO load may mean there are very few clean blocks in the cache, and
we risk demoting entries that get hit a lot.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>