From ba04107fc901ddce49686944f7e038b4f0b0a359 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 27 Apr 2018 21:25:01 -0700 Subject: [PATCH] rcu: Move rcu_gp_in_progress() to ->gp_seq This commit makes rcu_gp_in_progress() use ->gp_seq instead of ->completed and ->gpnum. The READ_ONCE() invocations are buried in rcu_seq_current(). Signed-off-by: Paul E. McKenney --- 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 b3af3d2..56445f4 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -219,7 +219,7 @@ unsigned long rcu_rnp_online_cpus(struct rcu_node *rnp) */ static int rcu_gp_in_progress(struct rcu_state *rsp) { - return READ_ONCE(rsp->completed) != READ_ONCE(rsp->gpnum); + return rcu_seq_state(rcu_seq_current(&rsp->gp_seq)); } /* -- 2.7.4