tree 98affb849897dcefc0b256886f4e43df7aae1052
parent 8fa9765576875200a7412a5300b5f0537211f038
author Sage Weil <sage@newdream.net> 1255977711 -0700
committer Sage Weil <sage@newdream.net> 1255977761 -0700

ceph: include preferred osd in placement seed

Mix the preferred osd (if any) into the placement seed that is fed into
the CRUSH object placement calculation.  This prevents all the placement
pgs from peering with the same osds.

Rev the osd client protocol with this change.

Signed-off-by: Sage Weil <sage@newdream.net>