[PATCH tip/core/rcu 18/19] rcu: Convert rcu_initiate_boost() ULONG_CMP_GE() to time_after()

paulmck
2020-04-15T17:11:42Z

This commit converts the ULONG_CMP_GE() in rcu_initiate_boost() to
time_after() to reflect the fact that it is comparing a timestamp to
the jiffies counter.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/tree_plugin.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 664d0aa..5cd27c2 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1080,7 +1080,7 @@ static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
(rnp->gp_tasks != NULL &&
rnp->boost_tasks == NULL &&
rnp->qsmask == 0 &&
- (ULONG_CMP_GE(jiffies, rnp->boost_time) || rcu_state.cbovld))) {
+ (!time_after(rnp->boost_time, jiffies) || rcu_state.cbovld))) {
if (rnp->exp_tasks == NULL)
WRITE_ONCE(rnp->boost_tasks, rnp->gp_tasks);
raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
--
2.9.5