PM / suspend: show workqueue state in suspend flow
If freezable workqueue aborts suspend flow, show workqueue state for debug purpose. Signed-off-by: Roger Lu <roger.lu@mediatek.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -89,6 +89,9 @@ static int try_to_freeze_tasks(bool user_only)
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elapsed_msecs / 1000, elapsed_msecs % 1000,
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todo - wq_busy, wq_busy);
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if (wq_busy)
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show_workqueue_state();
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if (!wakeup) {
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read_lock(&tasklist_lock);
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for_each_process_thread(g, p) {
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@ -4369,8 +4369,8 @@ static void show_pwq(struct pool_workqueue *pwq)
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/**
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* show_workqueue_state - dump workqueue state
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*
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* Called from a sysrq handler and prints out all busy workqueues and
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* pools.
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* Called from a sysrq handler or try_to_freeze_tasks() and prints out
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* all busy workqueues and pools.
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*/
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void show_workqueue_state(void)
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{
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