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qsbr: Add write+read thread support to 32-bit QSBR
[userspace-rcu.git]
/
urcu.c
diff --git
a/urcu.c
b/urcu.c
index c210a1341ade8a189752417249bb47bca73a03aa..07537efbc55c90943b49f1a240aab5935fc55bc7 100644
(file)
--- a/
urcu.c
+++ b/
urcu.c
@@
-36,7
+36,7
@@
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
#include "urcu.h"
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
#include "urcu.h"
-#ifndef
CONFIG_URCU_AVOID_SIGNALS
+#ifndef
URCU_MB
void __attribute__((constructor)) urcu_init(void);
void __attribute__((destructor)) urcu_exit(void);
#else
void __attribute__((constructor)) urcu_init(void);
void __attribute__((destructor)) urcu_exit(void);
#else
@@
-52,7
+52,7
@@
pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
/*
* Global grace period counter.
* Contains the current RCU_GP_CTR_BIT.
/*
* Global grace period counter.
* Contains the current RCU_GP_CTR_BIT.
- * Also has a RCU_GP_C
TR_BI
T of 1, to accelerate the reader fast path.
+ * Also has a RCU_GP_C
OUN
T of 1, to accelerate the reader fast path.
* Written to only by writer with mutex taken. Read by both writer and readers.
*/
long urcu_gp_ctr = RCU_GP_COUNT;
* Written to only by writer with mutex taken. Read by both writer and readers.
*/
long urcu_gp_ctr = RCU_GP_COUNT;
@@
-127,7
+127,7
@@
static void switch_next_urcu_qparity(void)
STORE_SHARED(urcu_gp_ctr, urcu_gp_ctr ^ RCU_GP_CTR_BIT);
}
STORE_SHARED(urcu_gp_ctr, urcu_gp_ctr ^ RCU_GP_CTR_BIT);
}
-#ifdef
CONFIG_URCU_AVOID_SIGNALS
+#ifdef
URCU_MB
#ifdef HAS_INCOHERENT_CACHES
static void force_mb_single_thread(struct reader_registry *index)
{
#ifdef HAS_INCOHERENT_CACHES
static void force_mb_single_thread(struct reader_registry *index)
{
@@
-139,7
+139,7
@@
static void force_mb_all_threads(void)
{
smp_mb();
}
{
smp_mb();
}
-#else /* #ifdef
CONFIG_URCU_AVOID_SIGNALS
*/
+#else /* #ifdef
URCU_MB
*/
#ifdef HAS_INCOHERENT_CACHES
static void force_mb_single_thread(struct reader_registry *index)
{
#ifdef HAS_INCOHERENT_CACHES
static void force_mb_single_thread(struct reader_registry *index)
{
@@
-206,7
+206,7
@@
static void force_mb_all_threads(void)
}
smp_mb(); /* read ->need_mb before ending the barrier */
}
}
smp_mb(); /* read ->need_mb before ending the barrier */
}
-#endif /* #else #ifdef
CONFIG_URCU_AVOID_SIGNALS
*/
+#endif /* #else #ifdef
URCU_MB
*/
void wait_for_quiescent_state(void)
{
void wait_for_quiescent_state(void)
{
@@
-420,7
+420,7
@@
void rcu_unregister_thread(void)
internal_urcu_unlock();
}
internal_urcu_unlock();
}
-#ifndef
CONFIG_URCU_AVOID_SIGNALS
+#ifndef
URCU_MB
static void sigurcu_handler(int signo, siginfo_t *siginfo, void *context)
{
/*
static void sigurcu_handler(int signo, siginfo_t *siginfo, void *context)
{
/*
@@
-473,4
+473,4
@@
void urcu_exit(void)
assert(act.sa_sigaction == sigurcu_handler);
free(registry);
}
assert(act.sa_sigaction == sigurcu_handler);
free(registry);
}
-#endif /* #ifndef
CONFIG_URCU_AVOID_SIGNALS
*/
+#endif /* #ifndef
URCU_MB
*/
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