Re: [PATCH 4/8] PM: suspend_block: Add debugfs file
From: Arve Hjønnevåg
Date: Tue May 04 2010 - 17:06:16 EST
2010/5/4 Andi Kleen <andi@xxxxxxxxxxxx>:
> Arve Hjønnevåg <arve@xxxxxxxxxxx> writes:
>>
>> +static int suspend_blocker_stats_show(struct seq_file *m, void *unused)
>> +{
>> + unsigned long irqflags;
>> + struct suspend_blocker *blocker;
>> +
>> + seq_puts(m, "name\tactive\n");
>> + spin_lock_irqsave(&list_lock, irqflags);
>> + list_for_each_entry(blocker, &inactive_blockers, link)
>> + seq_printf(m, "\"%s\"\t0\n", blocker->name);
>> + list_for_each_entry(blocker, &active_blockers, link)
>> + seq_printf(m, "\"%s\"\t1\n", blocker->name);
>> + spin_unlock_irqrestore(&list_lock, irqflags);
>
> Could you report the pid here too?
>
Most of the suspend blockers are in the kernel, and does not have a pid.
> The name set by the application might be meaningless or duplicated.
>
Currently all the names set by android user-space are unique but the
pids are not. We can add columns, or extend the name of user space
suspend blockers in the ioctl interface, later if needed.
--
Arve Hjønnevåg
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