rename internal_rcu_lock() into mutex_lock/unlock(&rcu_gp_lock)

[urcu.git] / urcu-qsbr.c

diff --git a/urcu-qsbr.c b/urcu-qsbr.c
index 3d576b57441eac3c318f6af6fea2fab7d362ef7d..1ac553faefdf20ba1f775fe3af1fd49fd2e698f2 100644 (file)
--- a/urcu-qsbr.c
+++ b/urcu-qsbr.c
@@ -39,7 +39,7 @@
 
 void __attribute__((destructor)) rcu_exit(void);
 
-static pthread_mutex_t rcu_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t rcu_gp_lock = PTHREAD_MUTEX_INITIALIZER;
 
 int gp_futex;
 
@@ -61,18 +61,18 @@ unsigned int __thread rand_yield;
 
 static LIST_HEAD(registry);
 
-static void internal_rcu_lock(void)
+static void mutex_lock(pthread_mutex_t *mutex)
 {
        int ret;
 
 #ifndef DISTRUST_SIGNALS_EXTREME
-       ret = pthread_mutex_lock(&rcu_mutex);
+       ret = pthread_mutex_lock(mutex);
        if (ret) {
                perror("Error in pthread mutex lock");
                exit(-1);
        }
 #else /* #ifndef DISTRUST_SIGNALS_EXTREME */
-       while ((ret = pthread_mutex_trylock(&rcu_mutex)) != 0) {
+       while ((ret = pthread_mutex_trylock(mutex)) != 0) {
                if (ret != EBUSY && ret != EINTR) {
                        printf("ret = %d, errno = %d\n", ret, errno);
                        perror("Error in pthread mutex lock");
@@ -83,11 +83,11 @@ static void internal_rcu_lock(void)
 #endif /* #else #ifndef DISTRUST_SIGNALS_EXTREME */
 }
 
-static void internal_rcu_unlock(void)
+static void mutex_unlock(pthread_mutex_t *mutex)
 {
        int ret;
 
-       ret = pthread_mutex_unlock(&rcu_mutex);
+       ret = pthread_mutex_unlock(mutex);
        if (ret) {
                perror("Error in pthread mutex unlock");
                exit(-1);
@@ -160,7 +160,7 @@ static void wait_for_quiescent_state(void)
 
 #if (BITS_PER_LONG < 64)
 /*
- * called with rcu_mutex held.
+ * called with rcu_gp_lock held.
  */
 static void switch_next_rcu_qparity(void)
 {
@@ -187,7 +187,7 @@ void synchronize_rcu(void)
        if (was_online)
                STORE_SHARED(rcu_reader.ctr, 0);
 
-       internal_rcu_lock();
+       mutex_lock(&rcu_gp_lock);
 
        switch_next_rcu_qparity();      /* 0 -> 1 */
 
@@ -227,7 +227,7 @@ void synchronize_rcu(void)
         */
        wait_for_quiescent_state();     /* Wait readers in parity 1 */
 
-       internal_rcu_unlock();
+       mutex_unlock(&rcu_gp_lock);
 
        /*
         * Finish waiting for reader threads before letting the old ptr being
@@ -253,10 +253,10 @@ void synchronize_rcu(void)
        if (was_online)
                STORE_SHARED(rcu_reader.ctr, 0);
 
-       internal_rcu_lock();
+       mutex_lock(&rcu_gp_lock);
        STORE_SHARED(rcu_gp_ctr, rcu_gp_ctr + RCU_GP_CTR);
        wait_for_quiescent_state();
-       internal_rcu_unlock();
+       mutex_unlock(&rcu_gp_lock);
 
        if (was_online)
                _STORE_SHARED(rcu_reader.ctr, LOAD_SHARED(rcu_gp_ctr));
@@ -298,9 +298,9 @@ void rcu_register_thread(void)
        rcu_reader.tid = pthread_self();
        assert(rcu_reader.ctr == 0);
 
-       internal_rcu_lock();
+       mutex_lock(&rcu_gp_lock);
        list_add(&rcu_reader.head, &registry);
-       internal_rcu_unlock();
+       mutex_unlock(&rcu_gp_lock);
        _rcu_thread_online();
 }
 
@@ -311,9 +311,9 @@ void rcu_unregister_thread(void)
         * with a waiting writer.
         */
        _rcu_thread_offline();
-       internal_rcu_lock();
+       mutex_lock(&rcu_gp_lock);
        list_del(&rcu_reader.head);
-       internal_rcu_unlock();
+       mutex_unlock(&rcu_gp_lock);
 }
 
 void rcu_exit(void)