X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=urcu-call-rcu-impl.h;h=c0298d24b6a732ba7979fa3aa740b4085e1ccb45;hb=e6564e91d80f5a5b86941d1f21014abbfba1a7d6;hp=04f7798c3f57a433a3756f267e0ffdc07e5e4552;hpb=d2c9fd841798e47b206e116b1b16535eb17a5f1a;p=userspace-rcu.git

diff --git a/urcu-call-rcu-impl.h b/urcu-call-rcu-impl.h
index 04f7798..c0298d2 100644
--- a/urcu-call-rcu-impl.h
+++ b/urcu-call-rcu-impl.h
@@ -267,6 +267,8 @@ static void *call_rcu_thread(void *arg)
 			uatomic_or(&crdp->flags, URCU_CALL_RCU_PAUSED);
 			while ((uatomic_read(&crdp->flags) & URCU_CALL_RCU_PAUSE) != 0)
 				poll(NULL, 0, 1);
+			uatomic_and(&crdp->flags, ~URCU_CALL_RCU_PAUSED);
+			cmm_smp_mb__after_uatomic_and();
 			rcu_register_thread();
 		}
 
@@ -763,6 +765,10 @@ void call_rcu_after_fork_parent(void)
 
 	cds_list_for_each_entry(crdp, &call_rcu_data_list, list)
 		uatomic_and(&crdp->flags, ~URCU_CALL_RCU_PAUSE);
+	cds_list_for_each_entry(crdp, &call_rcu_data_list, list) {
+		while ((uatomic_read(&crdp->flags) & URCU_CALL_RCU_PAUSED) != 0)
+			poll(NULL, 0, 1);
+	}
 	call_rcu_unlock(&call_rcu_mutex);
 }