+// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+// SPDX-FileCopyrightText: 2009 Paul E. McKenney, IBM Corporation.
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
/*
- * urcu-pointer.c
- *
* library wrappers to be used by non-LGPL compatible source code.
*
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
* IBM's contributions to this file may be relicensed under LGPLv2 or later.
*/
#include <urcu/uatomic.h>
-#include "urcu/static/urcu-pointer.h"
+#include <urcu/static/pointer.h>
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
-#include "urcu-pointer.h"
+#include <urcu/pointer.h>
extern void synchronize_rcu(void);
void *rcu_set_pointer_sym(void **p, void *v)
{
- cmm_wmb();
- uatomic_set(p, v);
+ uatomic_store(p, v, CMM_RELEASE);
return v;
}
void *rcu_xchg_pointer_sym(void **p, void *v)
{
- cmm_wmb();
- return uatomic_xchg(p, v);
+ return uatomic_xchg_mo(p, v, CMM_SEQ_CST);
}
void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
{
- cmm_wmb();
- return uatomic_cmpxchg(p, old, _new);
+ return uatomic_cmpxchg_mo(p, old, _new, CMM_SEQ_CST, CMM_RELAXED);
}