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PM / sleep: Show freezing tasks that caused a suspend abort

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For debug purposes it would be nice to see which tasks
caused a suspend abort, i.e. which tasks were still
in the process of freezing when a wakeup event occurred.
This patch adds the info to pm_debug_messages.

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Todd Brandt 2018-08-22 18:37:11 -07:00 committed by Rafael J. Wysocki
parent 3bb756449b
commit 8412dbd642
1 changed files with 1 additions and 1 deletions
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2
kernel/power/process.c
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@ -96,7 +96,7 @@ static int try_to_freeze_tasks(bool user_only)
if (wq_busy)
show_workqueue_state();
if (!wakeup) {
if (!wakeup || pm_debug_messages_on) {
read_lock(&tasklist_lock);
for_each_process_thread(g, p) {
if (p != current && !freezer_should_skip(p)