[dm-devel] Getting mapped device namw

[Gili B]

Thanks
My module is creating target similar to pool and thin from dm_thin.c. 
if the user creates a pool named "Pool1", and now he wishes
to watch statistics/inside info regarding this pool,
I wanted to create a proc entry
/proc/my module name/pools/Pool1 
 
for that I need the pool name which now it seems to me that I cannot find out.
 
I can ask the user to add another parameter during the pool creation, but seems
Like an overhead and I'll need to do some extra verefications etc.
 
Regards
-gili

 
> To: dm-devel at redhat.com
> From: zdenek.kabelac at gmail.com
> Date: Mon, 6 Jul 2015 13:20:38 +0200
> Subject: Re: [dm-devel] Getting mapped device namw
> 
> Dne 6.7.2015 v 11:20 Gili B napsal(a):
> > hi
> > when a user run :
> > dmsetup create [device name] ....
> > Can a device mapper target find out the device name that the user entered ?
> > I need it for creating entries in proc for example.
> 
> It's probably worth to note here - the dm target should always care ONLY about 
> major:minor - it should never care about the name of device.
> It looks like you are doing something weird in your target.
> 
> Regards
> 
> Zdeenk
> 
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