filestore: ignore ENOSPC on setxattr pending a better workaround
filestore: ignore ENOSPC on setxattr pending a better workaround

This effectively reverts to old behavior (we weren't checking for ENOSPC
errors at all before).  Log which object it happened on.

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@newdream.net>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph