Version 0.7.11

[userspace-rcu.git] / urcu-qsbr.c

diff --git a/urcu-qsbr.c b/urcu-qsbr.c
index ec483d925c0bdbfc85e8a0dfeb1690849a940705..76aaabb4eac85fbb11aefc487bab627aa241a384 100644 (file)
--- a/urcu-qsbr.c
+++ b/urcu-qsbr.c
@@ -119,7 +119,7 @@ static void wait_gp(void)
 static void update_counter_and_wait(void)
 {
        CDS_LIST_HEAD(qsreaders);
-       int wait_loops = 0;
+       unsigned int wait_loops = 0;
        struct rcu_reader *index, *tmp;
 
 #if (CAA_BITS_PER_LONG < 64)
@@ -150,7 +150,6 @@ static void update_counter_and_wait(void)
         * Wait for each thread rcu_reader_qs_gp count to become 0.
         */
        for (;;) {
-               wait_loops++;
                if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
                        uatomic_set(&gp_futex, -1);
                        /*
@@ -163,6 +162,8 @@ static void update_counter_and_wait(void)
                        }
                        /* Write futex before read reader_gp */
                        cmm_smp_mb();
+               } else {
+                       wait_loops++;
                }
                cds_list_for_each_entry_safe(index, tmp, &registry, node) {
                        if (!rcu_gp_ongoing(&index->ctr))