diff options
Diffstat (limited to 'drivers/base/power/wakeup.c')
| -rw-r--r-- | drivers/base/power/wakeup.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index b1983130..7295be54 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c @@ -959,6 +959,35 @@ static int wakeup_sources_stats_show(struct seq_file *m, void *unused) return 0; } +/* lenovo.sw begin chenyb1 20141107 add to dump wakelock info for power */ +#ifdef CONFIG_LENOVO_PM_LOG +int wakelock_dump_info(char* buf) +{ + struct wakeup_source *ws; + unsigned long flags; + char* p = buf; + + rcu_read_lock(); + list_for_each_entry_rcu(ws, &wakeup_sources, entry) + { + spin_lock_irqsave(&ws->lock, flags); + if (ws->active) { + long timeout = ws->timer_expires - jiffies; + if (timeout > 0) + p += sprintf(p, " (active)[%s], time left %ld (jiffies)\n", + ws->name, timeout); + else // active + p += sprintf(p, " (active)[%s]\n", ws->name); + } + spin_unlock_irqrestore(&ws->lock, flags); + } + rcu_read_unlock(); + + return p - buf; +} +#endif //#ifdef CONFIG_LENOVO_PM_LOG +/* lenovo.sw end chenyb1 20141107 add to dump wakelock info for power */ + static int wakeup_sources_stats_open(struct inode *inode, struct file *file) { return single_open(file, wakeup_sources_stats_show, NULL); |