ceph/ceph — pull request #2658 by athanatos (2014-10-07 18:05:53+00:00)
Title: PG: release backfill reservations if a backfill peer rejects

Also, the full peer will wait until the rejection from the primary
to do a state transition.

Fixes: #9626
Backport: giant, firefly, dumpling
Signed-off-by: Samuel Just