Ceph

it's a delete:

(gdb) p *latest
$1 = {op = 3, soid = {oid = {name = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, 
          _M_p = 0x6ede3a8 "plana2827491-112"}}}, snap = {val = 18446744073709551614}, hash = 2817255090, max = false, pool = 3, nspace = {static npos = <optimized out>, 
      _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xd30c78 ""}}, key = {static npos = <optimized out>, 
      _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xd30c78 ""}}}, version = {version = 7409, epoch = 845, __pad = 0}, 
  prior_version = {version = 7406, epoch = 843, __pad = 0}, reverting_to = {version = 0, epoch = 0, __pad = 0}, reqid = {name = {_type = 8 '\b', _num = 4140, static TYPE_MON = 1, static TYPE_MDS = 2, 
      static TYPE_OSD = 4, static TYPE_CLIENT = 8, static NEW = -1}, tid = 4997, inc = 0}, mtime = {tv = {tv_sec = 1386395727, tv_nsec = 611103000}}, snaps = {
    _buffers = {<std::_List_base<ceph::buffer::ptr, std::allocator<ceph::buffer::ptr> >> = {
        _M_impl = {<std::allocator<std::_List_node<ceph::buffer::ptr> >> = {<__gnu_cxx::new_allocator<std::_List_node<ceph::buffer::ptr> >> = {<No data fields>}, <No data fields>}, _M_node = {
            _M_next = 0x217eea0, _M_prev = 0x217eea0}}}, <No data fields>}, _len = 0, append_buffer = {_raw = 0x0, _off = 0, _len = 0}, last_p = {bl = 0x217eea0, ls = 0x217eea0, off = 0, p = {
        _M_node = 0x217eea0}, p_off = 0}}, invalid_hash = false, invalid_pool = false, offset = 0}
...
(gdb) p info.last_update
$3 = {version = 7484, epoch = 990, __pad = 0}
(gdb) p latest->version
$4 = {version = 7409, epoch = 845, __pad = 0}