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torture: Delay CPU-hotplug operations until boot completes 

CPU-hotplug operations invoke stop-machine, which 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 <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2025-08-13 20:16:29 -07:00
parent 9a316fe3ad
commit 6e9c48b3e3
1 changed files with 2 additions and 0 deletions
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2
kernel/torture.c
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@ -359,6 +359,8 @@ torture_onoff(void *arg)
torture_hrtimeout_jiffies(onoff_holdoff, &rand);
VERBOSE_TOROUT_STRING("torture_onoff end holdoff");
}
while (!rcu_inkernel_boot_has_ended())
schedule_timeout_interruptible(HZ / 10);
while (!torture_must_stop()) {
if (disable_onoff_at_boot && !rcu_inkernel_boot_has_ended()) {
torture_hrtimeout_jiffies(HZ / 10, &rand);