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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>
This commit is contained in:
Paul E. McKenney 2018-10-01 13:25:32 -07:00
parent 1dfddcdb95
commit b3c1d9ec7c
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/tree.c
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@ -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();