From 7b776af66dc462caa7e839cc5c950a61db1f8551 Mon Sep 17 00:00:00 2001
From: Roger Lu <roger.lu@mediatek.com>
Date: Fri, 1 Jul 2016 11:05:02 +0800
Subject: 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>
---
kernel/power/process.c | 3 +++
1 file changed, 3 insertions(+)
(limited to 'kernel/power/process.c')
diff --git a/kernel/power/process.c b/kernel/power/process.c
index df058be..6eef250 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -89,6 +89,9 @@ static int try_to_freeze_tasks(bool user_only)
elapsed_msecs / 1000, elapsed_msecs % 1000,
todo - wq_busy, wq_busy);
+ if (wq_busy)
+ show_workqueue_state();
+
if (!wakeup) {
read_lock(&tasklist_lock);
for_each_process_thread(g, p) {
--
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