[PATCH tip/core/rcu 17/20] rcu: Fix comment in rcu_organize_nocb_kthreads()

From: Paul E. McKenney
Date: Sat Jan 14 2017 - 04:14:23 EST


It used to be that the rcuo callback-offload kthreads were spawned
in rcu_organize_nocb_kthreads(), and the comment before the "for"
loop says as much. However, this spawning has long since moved to
the CPU-hotplug code, so this commit fixes this comment.

Reported-by: Michalis Kokologiannakis <mixaskok@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree_plugin.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index e92d67a3fad2..9e295c3516dc 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2377,8 +2377,9 @@ static void __init rcu_organize_nocb_kthreads(struct rcu_state *rsp)
}

/*
- * Each pass through this loop sets up one rcu_data structure and
- * spawns one rcu_nocb_kthread().
+ * Each pass through this loop sets up one rcu_data structure.
+ * Should the corresponding CPU come online in the future, then
+ * we will spawn the needed set of rcu_nocb_kthread() kthreads.
*/
for_each_cpu(cpu, rcu_nocb_mask) {
rdp = per_cpu_ptr(rsp->rda, cpu);
--
2.5.2