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ANDROID: workqueue: add vendor hook for wq lockup information

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- Add the hook to provide additional information like
   a task scheduling log.

Bug: 169374262

Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Change-Id: I203dbc6faa77687ea48769f76658d28b29ef46fd
This commit is contained in:
Sangmoon Kim 2020-09-29 10:15:35 +09:00
commit 2ea974a00c
3 changed files with 31 additions and 0 deletions
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5
kernel/workqueue.c
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@ -53,6 +53,10 @@
#include "workqueue_internal.h"
#include <trace/hooks/wqlockup.h>
/* events/workqueue.h uses default TRACE_INCLUDE_PATH */
#undef TRACE_INCLUDE_PATH
enum {
/*
* worker_pool flags
@ -5768,6 +5772,7 @@ static void wq_watchdog_timer_fn(struct timer_list *unused)
pr_cont_pool_info(pool);
pr_cont(" stuck for %us!\n",
jiffies_to_msecs(jiffies - pool_ts) / 1000);
trace_android_vh_wq_lockup_pool(pool->cpu, pool_ts);
}
}