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power: wakelock: Print active wakelocks when has_wake_lock() is called

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When DEBUG_SUSPEND is enabled print active wakelocks when we check
if there are any active wakelocks.

In print_active_locks(), print expired wakelocks if DEBUG_EXPIRE is enabled

Change-Id: Ib1cb795555e71ff23143a2bac7c8a58cbce16547
Signed-off-by: Mike Chan <mike@android.com>
(cherry picked from commit af62b25adba1fe01c91aa88c95d1584371ab2bf9)
This commit is contained in:
Mike Chan
2010-02-16 14:18:55 -08:00
committed by Stephen Boyd
parent 714fdaf2e8
commit cf83708fcc
1 changed files with 10 additions and 5 deletions
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15
kernel/power/wakelock.c
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@@ -214,20 +214,23 @@ static void expire_wake_lock(struct wake_lock *lock)
/* Caller must acquire the list_lock spinlock */
static void print_active_locks(int type)
{
unsigned long irqflags;
struct wake_lock *lock;
bool print_expired = true;
BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);
list_for_each_entry(lock, &active_wake_locks[type], link) {
if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) {
long timeout = lock->expires - jiffies;
if (timeout <= 0)
pr_info("wake lock %s, expired\n", lock->name);
else
if (timeout > 0)
pr_info("active wake lock %s, time left %ld\n",
lock->name, timeout);
} else
else if (print_expired)
pr_info("wake lock %s, expired\n", lock->name);
} else {
pr_info("active wake lock %s\n", lock->name);
if (!debug_mask & DEBUG_EXPIRE)
print_expired = false;
}
}
}
@@ -256,6 +259,8 @@ long has_wake_lock(int type)
unsigned long irqflags;
spin_lock_irqsave(&list_lock, irqflags);
ret = has_wake_lock_locked(type);
if (ret && (debug_mask & DEBUG_SUSPEND) && type == WAKE_LOCK_SUSPEND)
print_active_locks(type);
spin_unlock_irqrestore(&list_lock, irqflags);
return ret;
}