Re: [dm-devel] how to trace the device mapper?

["Alan D. Brunelle" <Alan Brunelle hp com>]

Jui-Pin Yang wrote:

> Hi,
> I would like to trace the device mapper, and any good suggestion to do the
> job
> is welcome such as how to start and so on.
> Thanks
>  
If you are looking for interactions with the underlying block I/O layer 
interfaces, you could look into blktrace.

Alan D. Brunelle
HP

> Best Regards
>
> Jui-Pin Yang
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