ceph/ceph — pull request #2444 by wonzhq (2014-09-10 04:35:41+00:00)
Title: osd: set min_read_recency_for_promote to default 1 when doing upgrade

When upgrading from a build without the promotion on 2nd read feature,
should set min_read_recency_for_promote to the default value 1, instead
of 0.

Signed-off-by: Zhiqiang Wang