From b3c1d9ec7c59feadd22693f43145d8285bd35b04 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 1 Oct 2018 13:25:32 -0700 Subject: rcu: Avoid double multiply by HZ The rcu_check_gp_start_stall() function multiplies the return value from rcu_jiffies_till_stall_check() by HZ, but the units are already in jiffies. This commit therefore avoids the need for introduction of a jiffies-squared unit by removing the extraneous multiplication. Signed-off-by: Paul E. McKenney --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 121f833acd04..4933f5d9d992 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2603,7 +2603,7 @@ static void force_quiescent_state(void) static void rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp) { - const unsigned long gpssdelay = rcu_jiffies_till_stall_check() * HZ; + const unsigned long gpssdelay = rcu_jiffies_till_stall_check(); unsigned long flags; unsigned long j; struct rcu_node *rnp_root = rcu_get_root(); -- cgit v1.2.3