[dm-devel] [PATCH] dm-path-selector: fix refcount corruption

[Jun'ichi Nomura]

Hi Jonathan,

Jonathan Brassow wrote:
> On Feb 5, 2009, at 6:51 AM, Jun'ichi Nomura wrote:
> 
>> @@ -136,11 +126,6 @@ int dm_unregister_path_selector(struct p
>>         return -EINVAL;
>>     }
>>
>> -    if (psi->use) {
>> -        up_write(&_ps_lock);
>> -        return -ETXTBSY;
>> -    }
>> -
>>     list_del(&psi->list);
> 
> 
> We still need this in some form, don't we?  Like 'if (module_refcount...'?

I don't think so.
dm_unregister_path_selector() is called from module_exit function. So it is called when the refcount is 0.

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation