[dm-devel] Getting mapped device namw

[Gili B]

Thanks
hash_cell is defined privately in dm_ioctl.c , so I cannot access it.
also dm_get_mdptr ,is not extern so I can't access it neither.
 
Thanks
-gili
 
> Date: Mon, 6 Jul 2015 12:32:33 +0300
> From: kernel at kyup.com
> To: dm-devel at redhat.com
> Subject: Re: [dm-devel] Getting mapped device namw
> 
> 
> On 07/06/2015 12:20 PM, Gili B wrote:
> > hi
> > when a user run :
> > dmsetup create [device name] ....
> > Can a device mapper target find out the device name that the user entered ?
> 
> Apparently the name is being associated with a hash_cell object, which
> in turn is associated with struct mapped_device in dm_hash_insert
> (called from dev_create, which is invoked as part of the create IOCTL).
> So presumably if you get an instance of struct mapped_device and then
> invoke dm_get_mdptr(md). What you'd get is a pointer to struct hash_cell
> 
> > I need it for creating entries in proc for example.
> >  
> > Thanks
> > -gili
> >  		 	   		  
> > 
> > 
> > 
> > --
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> > dm-devel at redhat.com
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> > 
> 
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