+static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
+{
+ struct osd_thread_info *info = osd_oti_get(env);
+ struct lu_buf buf;
+ int rc;
+ struct lustre_mdt_attrs *lma;
+ ENTRY;
+
+ CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
+ lma = (struct lustre_mdt_attrs *)info->oti_buf;
+ buf.lb_buf = lma;
+ buf.lb_len = sizeof(info->oti_buf);
+
+ rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA, BYPASS_CAPA);
+ if (rc > 0) {
+ rc = 0;
+ lustre_lma_swab(lma);
+ if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
+ CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
+ CWARN("%s: unsupported incompat LMA feature(s) %#x for "
+ "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
+ lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
+ PFID(lu_object_fid(&obj->oo_dt.do_lu)));
+ rc = -EOPNOTSUPP;
+ }
+ } else if (rc == -ENODATA) {
+ /* haven't initialize LMA xattr */
+ rc = 0;
+ }
+
+ RETURN(rc);
+}
+