From 274afd6bfa64984724963204b832cc71565a7740 Mon Sep 17 00:00:00 2001 From: Ildar Ismagilov Date: Tue, 30 Jan 2018 15:40:16 -0800 Subject: [PATCH] rcu: Fix misprint in srcu_funnel_exp_start The srcu_funnel_exp_start() function checks to see if the srcu_struct structure's expedited grace period counter needs updating to reflect a newly arrived request for an expedited SRCU grace period. Unfortunately, the check is backwards, so this commit reverses the sense of the test. Signed-off-by: Ildar Ismagilov Signed-off-by: Paul E. McKenney --- kernel/rcu/srcutree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 9c6e0eaab4d5..045b559b9f22 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -626,7 +626,7 @@ static void srcu_funnel_exp_start(struct srcu_struct *sp, struct srcu_node *snp, spin_unlock_irqrestore_rcu_node(snp, flags); } spin_lock_irqsave_rcu_node(sp, flags); - if (!ULONG_CMP_LT(sp->srcu_gp_seq_needed_exp, s)) + if (ULONG_CMP_LT(sp->srcu_gp_seq_needed_exp, s)) sp->srcu_gp_seq_needed_exp = s; spin_unlock_irqrestore_rcu_node(sp, flags); }