[dm-devel] Re: dm: bind new table before destroying old

[Milan Broz]

On 11/11/2009 04:11 PM, Alasdair G Kergon wrote:
> On Wed, Nov 11, 2009 at 03:56:05PM +0900, Kiyoshi Ueda wrote:
>> I believe dm-mpath needs to flush such workqueues in postsuspend.
> 
> Yes - should be an easy change.

similar problem is probably in crypt target, I'll check it later.

>> Also, we need something to block message ioctl to suspended device.
>  
>> As for the message ioctl, I don't have any good idea, but...
>>   - Reject message ioctl to suspended device in dm-ioctl
> 
> I think the crypt target expects to be able to do this to manipulate
> the in-core encryption key.

yes, crypt target must be able to process messages when in suspended state.

Milan