linux-kernel - Re: dm-crypt: fix warning in shutdown path

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Message-ID: <20180602200723.GA23980@redhat.com>
Date:   Sat, 2 Jun 2018 16:07:23 -0400
From:   Mike Snitzer <snitzer@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>, Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Kent Overstreet <kent.overstreet@...il.com>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: dm-crypt: fix warning in shutdown path

On Sat, Jun 02 2018 at  4:03pm -0400,
Jens Axboe <axboe@...nel.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@...nel.org>
Acked-by: Mike Snitzer <snitzer@...hat.com>