HAMMER             90 include/linux/ceph/ceph_features.h DEFINE_CEPH_FEATURE_RETIRED(14, 1, OMAP, HAMMER, JEWEL)
HAMMER            102 include/linux/ceph/ceph_features.h DEFINE_CEPH_FEATURE_RETIRED(21, 1, MON_GV, HAMMER, JEWEL)
HAMMER            116 include/linux/ceph/ceph_features.h DEFINE_CEPH_FEATURE_RETIRED(28, 1, OSD_HBMSGS, HAMMER, JEWEL)