X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=include%2Furcu%2Fstatic%2Furcu-common.h;h=d0fd06a3e221705ca14bbf820805658c65e1dda5;hb=601922a81d884e16ff404cee7534ede56fb87d0a;hp=60ea8b858b0feed7c3015c0a8fc12878e795e93f;hpb=014775106c60f02818ca755b331f887030bd440f;p=urcu.git diff --git a/include/urcu/static/urcu-common.h b/include/urcu/static/urcu-common.h index 60ea8b8..d0fd06a 100644 --- a/include/urcu/static/urcu-common.h +++ b/include/urcu/static/urcu-common.h @@ -1,31 +1,17 @@ +// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers +// SPDX-FileCopyrightText: 2009 Paul E. McKenney, IBM Corporation. +// +// SPDX-License-Identifier: LGPL-2.1-or-later + #ifndef _URCU_COMMON_STATIC_H #define _URCU_COMMON_STATIC_H /* - * urcu-common-static.h - * * Userspace RCU header. * * TO BE INCLUDED ONLY IN CODE THAT IS TO BE RECOMPILED ON EACH LIBURCU * RELEASE. See urcu.h for linking dynamically with the userspace rcu library. * - * Copyright (c) 2009 Mathieu Desnoyers - * 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. */ @@ -34,6 +20,7 @@ #include #include +#include #include #include #include @@ -105,7 +92,8 @@ static inline void urcu_common_wake_up_gp(struct urcu_gp *gp) } static inline enum urcu_state urcu_common_reader_state(struct urcu_gp *gp, - unsigned long *ctr) + unsigned long *ctr, + cmm_annotate_t *group) { unsigned long v; @@ -113,7 +101,9 @@ static inline enum urcu_state urcu_common_reader_state(struct urcu_gp *gp, * Make sure both tests below are done on the same version of *value * to insure consistency. */ - v = CMM_LOAD_SHARED(*ctr); + v = uatomic_load(ctr, CMM_RELAXED); + cmm_annotate_group_mem_acquire(group, ctr); + if (!(v & URCU_GP_CTR_NEST_MASK)) return URCU_READER_INACTIVE; if (!((v ^ gp->ctr) & URCU_GP_CTR_PHASE))