if (dlmlock->l_granted_mode == dlmlock->l_req_mode) {
struct cl_object *obj = olck->ols_cl.cls_obj;
struct cl_attr *attr = &osc_env_info(env)->oti_attr;
- __u64 old_kms = cl2osc(obj)->oo_oinfo->loi_kms;
+ __u64 old_kms;
+ cl_object_attr_lock(obj);
+ /* Must get the value under the lock to avoid possible races. */
+ old_kms = cl2osc(obj)->oo_oinfo->loi_kms;
/* Update the kms. Need to loop all granted locks.
* Not a problem for the client */
attr->cat_kms = ldlm_extent_shift_kms(dlmlock, old_kms);
- unlock_res_and_lock(dlmlock);
- cl_object_attr_lock(obj);
cl_object_attr_set(env, obj, attr, CAT_KMS);
cl_object_attr_unlock(obj);
- } else
- unlock_res_and_lock(dlmlock);
+ }
+ unlock_res_and_lock(dlmlock);
/* release a reference taken in osc_lock_upcall0(). */
LASSERT(olck->ols_has_ref);