[Ocfs2-devel] [PATCH] ocfs2: add uuid to ocfs2 thread name for problem analysis

[Junxiao Bi]

On 10/27/2015 07:39 PM, Joseph Qi wrote:
> Hi Junxiao,
> 
...
>>> diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
>>> index a43f9ef..570509e 100644
>>> --- a/fs/ocfs2/dlm/dlmrecovery.c
>>> +++ b/fs/ocfs2/dlm/dlmrecovery.c
>>> @@ -205,7 +205,7 @@ int dlm_launch_recovery_thread(struct dlm_ctxt *dlm)
>>>  	mlog(0, "starting dlm recovery thread...\n");
>>>
>>>  	dlm->dlm_reco_thread_task = kthread_run(dlm_recovery_thread, dlm,
>>> -						"dlm_reco_thread");
>>> +			"dlm_reco_thread-%s", dlm->name);
>> Indeed max length of task name is 16 bytes, and "dlm_reco_thread" plus
>> '\0' have taken all the space. So indeed above code is useless. Can we
>> rename this name and maybe other one(like "dlm_thread") to leave more
>> space for domain marker?
>>
> Yes, you are right. For dlm_reco_thread it won't print any uuid bytes.
> I put it here just for code consistency.
> It is really hard for me to rename it to a better one:)
> Any suggestions?
How about this?

dlmwq-xxxx
dlmrec-xxxx
dlm-xxxx
o2dc-xxxx
o2cmt-xxx
o2rec-xxx

Thanks,
Junxiao.

> 
> Thanks,
> Joseph
>