[Ocfs2-devel] [PATCH 0/2] ocfs2: add trace event support for ocfs2

[Tao Ma]

Hi Joel/Wengang,

Joel Becker wrote:
> On Thu, Sep 17, 2009 at 06:19:44AM +0800, Wengang Wang wrote:
>> following patches add trace event support for ocfs2.
> 
> Wengang,
> 	This looks like a nice start.  Thank you for getting this going.
> I'm sorry I haven't gotten back until now, I've been busy.
> 	What I'd like to do next is get a small starting set of
> tracepoints.  You have one tracepoint in this patch as a good example,
> but we should get a few more.  I don't want every mlog changed into a
> tracepoint.  Some of them are old and useless :-)  Instead, I'd like to
> find information we often want while debugging.
> 	Tao, Tiger, and Sunil, what are parts of the code you often come
> across when debugging?  Certain mlog() prints you always find really
> important to see.  If you point them out, Wengang can cook up
> tracepoints for them.
aops.c maybe? And recovery/dlm(The most awesome part)?

btw, I think the whole mechanism of b-tree(alloc.c) is quite stable now 
after tristan's stress test case for refcount tree. :) So no urgent need 
for this file by now.

Regards,
Tao
> 
> Joel
>