X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-static.h;h=eea39bb0641f8b5d295a46dd4f316761a6e85d21;hp=f68dd7c8dc1231641d040d6aeebad2a5da56970f;hb=53706aa68118271d0d14bd5f1baa7ea1c4cf9754;hpb=d4fc680a1b809d90cb28f144c5d3e1143171bbab diff --git a/urcu-static.h b/urcu-static.h index f68dd7c..eea39bb 100644 --- a/urcu-static.h +++ b/urcu-static.h @@ -9,7 +9,7 @@ * TO BE INCLUDED ONLY IN LGPL-COMPATIBLE CODE. See urcu.h for linking * dynamically with the userspace rcu library. * - * Copyright (c) 2009 Mathieu Desnoyers + * Copyright (c) 2009 Mathieu Desnoyers * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. * * This library is free software; you can redistribute it and/or @@ -222,7 +222,7 @@ struct rcu_reader { unsigned long ctr; char need_mb; /* Data used for registry */ - struct list_head head __attribute__((aligned(CACHE_LINE_SIZE))); + struct list_head node __attribute__((aligned(CACHE_LINE_SIZE))); pthread_t tid; }; @@ -259,6 +259,7 @@ static inline void _rcu_read_lock(void) { unsigned long tmp; + barrier(); /* Ensure the compiler does not reorder us with mutex */ tmp = rcu_reader.ctr; /* * rcu_gp_ctr is @@ -294,9 +295,10 @@ static inline void _rcu_read_unlock(void) } else { _STORE_SHARED(rcu_reader.ctr, rcu_reader.ctr - RCU_GP_COUNT); } + barrier(); /* Ensure the compiler does not reorder us with mutex */ } -#ifdef __cplusplus +#ifdef __cplusplus } #endif