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LU-2193 ldlm: print FID in lvbo_init(), lvbo_update
[fs/lustre-release.git] / lustre / quota / qsd_lock.c
index 6fd2de0..5dad588 100644 (file)
@@ -21,7 +21,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2013, Intel Corporation.
  * Use is subject to license terms.
  *
  * Author: Johann Lombardi <johann.lombardi@intel.com>
@@ -54,16 +54,19 @@ static struct qsd_qtype_info *qsd_glb_ast_data_get(struct ldlm_lock *lock,
        qqi = lock->l_ast_data;
        if (qqi != NULL) {
                qqi_getref(qqi);
-               lu_ref_add(&qqi->qqi_reference, "ast_data_get", lock);
                if (reset)
                        lock->l_ast_data = NULL;
        }
        unlock_res_and_lock(lock);
 
+       if (qqi != NULL)
+               /* it is not safe to call lu_ref_add() under spinlock */
+               lu_ref_add(&qqi->qqi_reference, "ast_data_get", lock);
+
        if (reset && qqi != NULL) {
                /* release qqi reference hold for the lock */
-               qqi_putref(qqi);
                lu_ref_del(&qqi->qqi_reference, "glb_lock", lock);
+               qqi_putref(qqi);
        }
        RETURN(qqi);
 }
@@ -163,7 +166,7 @@ static int qsd_glb_blocking_ast(struct ldlm_lock *lock,
 
                LDLM_DEBUG(lock, "blocking AST on global quota lock");
                ldlm_lock2handle(lock, &lockh);
-               rc = ldlm_cli_cancel(&lockh);
+               rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
                break;
        }
        case LDLM_CB_CANCELING: {
@@ -287,7 +290,7 @@ static int qsd_id_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *de
 
                LDLM_DEBUG(lock, "blocking AST on ID quota lock");
                ldlm_lock2handle(lock, &lockh);
-               rc = ldlm_cli_cancel(&lockh);
+               rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
                break;
        }
        case LDLM_CB_CANCELING: {
@@ -472,6 +475,7 @@ int qsd_id_lock_match(struct lustre_handle *lockh, struct lustre_handle *rlockh)
        ldlm_lock_dump_handle(D_QUOTA, lockh);
 
        if (rlockh == NULL)
+               /* caller not interested in remote handle */
                RETURN(0);
 
        /* look up lock associated with local handle and extract remote handle