[PATCH tip/core/rcu 03/14] rcu: Avoid double multiply by HZ

[Paul E. McKenney]

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 <paul...@linux.ibm.com>
---
 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();
-- 
2.17.1