Commit b3c1d9ec authored Oct 01, 2018 by Paul E. McKenney

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 <paulmck@linux.ibm.com>

parent 1dfddcdb

kernel/rcu/tree.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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();

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