Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

[sfrench/cifs-2.6.git] / kernel / rcutorture.c

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 233768f21f9735845c32c6ee9e3b27974a73e3b8..697c0a0229d47026c07434910d7dc231e2d1bb97 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -606,8 +606,6 @@ static struct rcu_torture_ops sched_ops_sync = {
        .name           = "sched_sync"
 };
 
-extern int rcu_expedited_torture_stats(char *page);
-
 static struct rcu_torture_ops sched_expedited_ops = {
        .init           = rcu_sync_torture_init,
        .cleanup        = NULL,
@@ -650,7 +648,7 @@ rcu_torture_writer(void *arg)
                old_rp = rcu_torture_current;
                rp->rtort_mbtest = 1;
                rcu_assign_pointer(rcu_torture_current, rp);
-               smp_wmb();
+               smp_wmb(); /* Mods to old_rp must follow rcu_assign_pointer() */
                if (old_rp) {
                        i = old_rp->rtort_pipe_count;
                        if (i > RCU_TORTURE_PIPE_LEN)