Cleanup: urcu: remove unused membarrier "group" parameter

[urcu.git] / urcu.c

diff --git a/urcu.c b/urcu.c
index 4702ba9aea4c1bc55f180b658c28bc56c03dec96..1aa00fec9278929996fed4183ebe2acf40d5b61f 100644 (file)
--- a/urcu.c
+++ b/urcu.c
@@ -165,7 +165,7 @@ static void mutex_unlock(pthread_mutex_t *mutex)
 }
 
 #ifdef RCU_MEMBARRIER
-static void smp_mb_master(int group)
+static void smp_mb_master(void)
 {
        if (caa_likely(rcu_has_sys_membarrier))
                (void) membarrier(MEMBARRIER_CMD_SHARED, 0);
@@ -175,7 +175,7 @@ static void smp_mb_master(int group)
 #endif
 
 #ifdef RCU_MB
-static void smp_mb_master(int group)
+static void smp_mb_master(void)
 {
        cmm_smp_mb();
 }
@@ -224,7 +224,7 @@ static void force_mb_all_readers(void)
        cmm_smp_mb();   /* read ->need_mb before ending the barrier */
 }
 
-static void smp_mb_master(int group)
+static void smp_mb_master(void)
 {
        force_mb_all_readers();
 }
@@ -236,7 +236,7 @@ static void smp_mb_master(int group)
 static void wait_gp(void)
 {
        /* Read reader_gp before read futex */
-       smp_mb_master(RCU_MB_GROUP);
+       smp_mb_master();
        if (uatomic_read(&rcu_gp.futex) != -1)
                return;
        while (futex_async(&rcu_gp.futex, FUTEX_WAIT, -1,
@@ -280,7 +280,7 @@ static void wait_for_readers(struct cds_list_head *input_readers,
                if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
                        uatomic_dec(&rcu_gp.futex);
                        /* Write futex before read reader_gp */
-                       smp_mb_master(RCU_MB_GROUP);
+                       smp_mb_master();
                }
 
                cds_list_for_each_entry_safe(index, tmp, input_readers, node) {
@@ -310,7 +310,7 @@ static void wait_for_readers(struct cds_list_head *input_readers,
                if (cds_list_empty(input_readers)) {
                        if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
                                /* Read reader_gp before write futex */
-                               smp_mb_master(RCU_MB_GROUP);
+                               smp_mb_master();
                                uatomic_set(&rcu_gp.futex, 0);
                        }
                        break;
@@ -333,13 +333,13 @@ static void wait_for_readers(struct cds_list_head *input_readers,
                if (cds_list_empty(input_readers)) {
                        if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
                                /* Read reader_gp before write futex */
-                               smp_mb_master(RCU_MB_GROUP);
+                               smp_mb_master();
                                uatomic_set(&rcu_gp.futex, 0);
                        }
                        break;
                } else {
                        if (wait_gp_loops == KICK_READER_LOOPS) {
-                               smp_mb_master(RCU_MB_GROUP);
+                               smp_mb_master();
                                wait_gp_loops = 0;
                        }
                        /* Temporarily unlock the registry lock. */
@@ -400,7 +400,7 @@ void synchronize_rcu(void)
         * because it iterates on reader threads.
         */
        /* Write new ptr before changing the qparity */
-       smp_mb_master(RCU_MB_GROUP);
+       smp_mb_master();
 
        /*
         * Wait for readers to observe original parity or be quiescent.
@@ -461,7 +461,7 @@ void synchronize_rcu(void)
         * being freed. Must be done within rcu_registry_lock because it
         * iterates on reader threads.
         */
-       smp_mb_master(RCU_MB_GROUP);
+       smp_mb_master();
 out:
        mutex_unlock(&rcu_registry_lock);
        mutex_unlock(&rcu_gp_lock);