rcutorture: Print SRCU lock/unlock totals
This commit adds printing of SRCU lock/unlock totals, which are just
the sums of the per-CPU counts. Saves a bit of mental arithmetic.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index 8f6fd11..b4f491b 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -1221,6 +1221,7 @@ void srcu_torture_stats_print(struct srcu_struct *sp, char *tt, char *tf)
{
int cpu;
int idx;
+ unsigned long s0 = 0, s1 = 0;
idx = sp->srcu_idx & 0x1;
pr_alert("%s%s Tree SRCU per-CPU(idx=%d):", tt, tf, idx);
@@ -1246,8 +1247,10 @@ void srcu_torture_stats_print(struct srcu_struct *sp, char *tt, char *tf)
c0 = l0 - u0;
c1 = l1 - u1;
pr_cont(" %d(%ld,%ld)", cpu, c0, c1);
+ s0 += c0;
+ s1 += c1;
}
- pr_cont("\n");
+ pr_cont(" T(%ld,%ld)\n", s0, s1);
}
EXPORT_SYMBOL_GPL(srcu_torture_stats_print);