libceph: announce support for straw2 buckets

#define CEPH_FEATURE_MDS_INLINE_DATA     (1ULL<<40)

#define CEPH_FEATURE_CRUSH_TUNABLES3     (1ULL<<41)

#define CEPH_FEATURE_OSD_PRIMARY_AFFINITY (1ULL<<41)  /* overlap w/ tunables3 */

#define CEPH_FEATURE_MSGR_KEEPALIVE2   (1ULL<<42)

#define CEPH_FEATURE_OSD_POOLRESEND    (1ULL<<43)

#define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 (1ULL<<44)

#define CEPH_FEATURE_OSD_SET_ALLOC_HINT (1ULL<<45)

#define CEPH_FEATURE_OSD_FADVISE_FLAGS (1ULL<<46)

#define CEPH_FEATURE_OSD_REPOP         (1ULL<<46)   /* overlap with fadvise */

#define CEPH_FEATURE_OSD_OBJECT_DIGEST  (1ULL<<46)  /* overlap with fadvise */

#define CEPH_FEATURE_OSD_TRANSACTION_MAY_LAYOUT (1ULL<<46) /* overlap w/ fadvise */

#define CEPH_FEATURE_MDS_QUOTA      (1ULL<<47)

#define CEPH_FEATURE_CRUSH_V4      (1ULL<<48)  /* straw2 buckets */

#define CEPH_FEATURE_OSD_MIN_SIZE_RECOVERY (1ULL<<49)

// duplicated since it was introduced at the same time as MIN_SIZE_RECOVERY

#define CEPH_FEATURE_OSD_PROXY_FEATURES (1ULL<<49)  /* overlap w/ above */

/*

 * The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature

	 CEPH_FEATURE_EXPORT_PEER |		\

	 CEPH_FEATURE_OSDMAP_ENC |		\

	 CEPH_FEATURE_CRUSH_TUNABLES3 |		\

	 CEPH_FEATURE_OSD_PRIMARY_AFFINITY)

	 CEPH_FEATURE_OSD_PRIMARY_AFFINITY |	\

	 CEPH_FEATURE_CRUSH_V4)

#define CEPH_FEATURES_REQUIRED_DEFAULT   \

	(CEPH_FEATURE_NOSRCADDR |	 \