The two fields here that are specific to the 'ost_body' case are the
'o_oi' and the 'o_stripe_idx', which give the identity of the OST and
the stripe index assigned to it.
-
-OST ID
-^^^^^^
-[[struct-ost-id]]
-
-The 'ost_id' identifies an object on a particular OST.
-
-----
-struct ost_id {
- union {
- struct {
- __u64 oi_id;
- __u64 oi_seq;
- } oi;
- struct lu_fid oi_fid;
- };
-};
-----
-