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LU-1842 ldlm: support for sending GL ASTs to multiple locks
[fs/lustre-release.git] / lustre / ofd / ofd_dlm.c
index 34790c5..22effa0 100644 (file)
@@ -107,7 +107,8 @@ int ofd_intent_policy(struct ldlm_namespace *ns, struct ldlm_lock **lockp,
                [DLM_LOCKREPLY_OFF]   = sizeof(*rep),
                [DLM_REPLY_REC_OFF]   = sizeof(*reply_lvb)
        };
-
+       struct ldlm_glimpse_work         gl_work;
+       CFS_LIST_HEAD(gl_list);
        ENTRY;
 
        policy = ldlm_get_processing_policy(res);
@@ -226,8 +227,20 @@ int ofd_intent_policy(struct ldlm_namespace *ns, struct ldlm_lock **lockp,
                goto out;
        }
 
-       LASSERTF(l->l_glimpse_ast != NULL, "l == %p", l);
-       rc = l->l_glimpse_ast(l, NULL); /* this will update the LVB */
+       /* Populate the gl_work structure.
+        * Grab additional reference on the lock which will be released in
+        * ldlm_work_gl_ast_lock() */
+       gl_work.gl_lock = LDLM_LOCK_GET(l);
+       /* The glimpse callback is sent to one single extent lock. As a result,
+        * the gl_work list is just composed of one element */
+       cfs_list_add_tail(&gl_work.gl_list, &gl_list);
+       /* the ldlm_glimpse_work structure is allocated on the stack */
+       gl_work.gl_flags = LDLM_GL_WORK_NOFREE;
+
+       rc = ldlm_glimpse_locks(res, &gl_list); /* this will update the LVB */
+
+       if (!cfs_list_empty(&gl_list))
+               LDLM_LOCK_RELEASE(l);
 
        lock_res(res);
        *reply_lvb = *res_lvb;