LU-13645 ldlm: group locks for DOM IBIT lock

[fs/lustre-release.git] / lustre / ldlm / ldlm_resource.c

diff --git a/lustre/ldlm/ldlm_resource.c b/lustre/ldlm/ldlm_resource.c
index a18daa8..0f4c9d4 100644 (file)
--- a/lustre/ldlm/ldlm_resource.c
+++ b/lustre/ldlm/ldlm_resource.c
@@ -1623,7 +1623,7 @@ static void __ldlm_resource_add_lock(struct ldlm_resource *res,
                list_add(&lock->l_res_link, head);
 
        if (res->lr_type == LDLM_IBITS)
-               ldlm_inodebits_add_lock(res, head, lock);
+               ldlm_inodebits_add_lock(res, head, lock, tail);
 
        ldlm_resource_dump(D_INFO, res);
 }
@@ -1655,6 +1655,11 @@ void ldlm_resource_insert_lock_after(struct ldlm_lock *original,
 
 /**
  * Insert a lock into resource before the specified lock.
+ *
+ * IBITS waiting locks are to be inserted to the ibit lists as well, and only
+ * the insert-after operation is supported for them, because the set of bits
+ * of the previous and the new locks must match. Therefore, get the previous
+ * lock and insert after.
  */
 void ldlm_resource_insert_lock_before(struct ldlm_lock *original,
                                       struct ldlm_lock *new)