From 51c285baa3fa04b95843da8e2f9895138ea64dd4 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 13 Aug 2025 20:41:04 -0700 Subject: [PATCH] rcutorture: Delay forward-progress testing until boot completes Forward-progress testing can hog CPUs, which is not a great thing to do before boot has completed. This commit therefore makes the CPU-hotplug operations hold off until boot has completed. Signed-off-by: Paul E. McKenney --- kernel/rcu/rcutorture.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 1578d3305657..b8a684459381 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -3457,6 +3457,8 @@ static int rcu_torture_fwd_prog(void *args) int tested_tries = 0; VERBOSE_TOROUT_STRING("rcu_torture_fwd_progress task started"); + while (!rcu_inkernel_boot_has_ended()) + schedule_timeout_interruptible(HZ / 10); rcu_bind_current_to_nocb(); if (!IS_ENABLED(CONFIG_SMP) || !IS_ENABLED(CONFIG_RCU_BOOST)) set_user_nice(current, MAX_NICE); -- 2.47.3