[SRU] 0.80.5 point release

Upstream release notes - http://ceph.com/docs/master/release-notes/

Highlights from 0.80.2->0.80.4:

    osd: disable XFS extsize hint by default (#8830, Samuel Just)
    rgw: fix extra data pool default name (Yehuda Sadeh)
    radosgw: fix regression in manifest decoding (#8804, Sage Weil)
    ceph-disk: better debug logging (Alfredo Deza)
    ceph-disk: fix preparation of OSDs with dmcrypt (#6700, Stephen F Taylor)
    ceph-disk: partprobe on prepare to fix dm-crypt (#6966, Eric Eastman)
    do not require ERASURE_CODE feature from clients (#8556, Sage Weil)
    libcephfs-java: build with older JNI headers (Greg Farnum)
    libcephfs-java: fix build with gcj-jdk (Dmitry Smirnov)
    librados: fix osd op tid for redirected ops (#7588, Samuel Just)
    librados: fix rados_pool_list buffer bounds checks (#8447, Sage Weil)
    librados: resend ops when pool overlay changes (#8305, Sage Weil)
    librbd, ceph-fuse: reduce CPU overhead for clean object check in cache (Haomai Wang)
    mon: allow deletion of cephfs pools (John Spray)
    mon: fix default pool ruleset choice (#8373, John Spray)
    mon: fix health summary for mon low disk warning (Sage Weil)
    mon: fix ‘osd pool set <pool> cache_target_full_ratio’ (Geoffrey Hartz)
    mon: fix quorum feature check (Greg Farnum)
    mon: fix request forwarding in mixed firefly+dumpling clusters 9#8727, Joao Eduardo Luis)
    mon: fix rule vs ruleset check in ‘osd pool set ... crush_ruleset’ command (John Spray)
    mon: make osd ‘down’ count accurate (Sage Weil)
    mon: set ‘next commit’ in primary-affinity reply (Ilya Dryomov)
    mon: verify CRUSH features are supported by all mons (#8738, Greg Farnum)
    msgr: fix sequence negotiation during connection reset (Guang Yang)
    osd: block scrub on blocked objects (#8011, Samuel Just)
    osd: call XFS hint ioctl less often (#8241, Ilya Dryomov)
    osd: copy xattr spill out marker on clone (Haomai Wang)
    osd: fix flush of snapped objects (#8334, Samuel Just)
    osd: fix hashindex restart of merge operation (#8332, Samuel Just)
    osd: fix osdmap subscription bug causing startup hang (Greg Farnum)
    osd: fix potential null deref (#8328, Sage Weil)
    osd: fix shutdown race (#8319, Sage Weil)
    osd: handle ‘none’ in CRUSH results properly during peering (#8507, Samuel Just)
    osd: set no spill out marker on new objects (Greg Farnum)
    osd: skip op ordering debug checks on tiered pools (#8380, Sage Weil)
    rados: enforce ‘put’ alignment (Lluis Pamies-Juarez)
    rest-api: fix for ‘rx’ commands (Ailing Zhang)
    rgw: calc user manifest etag and fix check (#8169, #8436, Yehuda Sadeh)
    rgw: fetch attrs on multipart completion (#8452, Yehuda Sadeh, Sylvain Munaut)
    rgw: fix buffer overflow for long instance ids (#8608, Yehuda Sadeh)
    rgw: fix entity permission check on metadata put (#8428, Yehuda Sadeh)
    rgw: fix multipart retry race (#8269, Yehuda Sadeh)
    rpm: split ceph into ceph and ceph-common RPMs (Sandon Van Ness, Dan Mick)
    sysvinit: continue startin daemons after failure doing mount (#8554, Sage Weil)