[dm-devel] dm-crypt: fix warning in shutdown path

[Mike Snitzer]

On Sat, Jun 02 2018 at  4:03pm -0400,
Jens Axboe <axboe at kernel.dk> wrote:

> On 6/2/18 11:45 AM, Kent Overstreet wrote:
> > The counter for the number of allocated pages includes pages in the
> > mempool's reserve, so checking that the number of allocated pages is 0
> > needs to happen after we exit the mempool.
> 
> Looks good, but needs a fixes line. I'll add one.

Also needs the subject and header updated to reflect that it fixes the
crash (Krzysztof please verify):

Reported-by: Krzysztof Kozlowski <krzk at kernel.org>
Acked-by: Mike Snitzer <snitzer at redhat.com>