linux-kernel - Re: [PATCH v2] bcache: explicitly destroy mutex while exiting

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Message-ID: <CAJ+L6qek7Rt5HvCU_Y0anpoa731Jzu+QeC9P=FVCxj9ksPFpVg@mail.gmail.com>
Date:   Fri, 27 Oct 2017 12:15:12 -0700
From:   Michael Lyle <mlyle@...e.org>
To:     Eric Wheeler <bcache@...ts.ewheeler.net>
Cc:     Coly Li <i@...y.li>, Liang Chen <liangchen.linux@...il.com>,
        linux-bcache@...r.kernel.org,
        Kent Overstreet <kent.overstreet@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] bcache: explicitly destroy mutex while exiting

On Fri, Oct 27, 2017 at 12:05 PM, Eric Wheeler
<bcache@...ts.ewheeler.net> wrote:
> Should this Cc: stable to avoid the register race (possible
> crash?) described by Liang in other stable kernels?
>
> Reviewed-by: Eric Wheeler <bcache@...ux.ewheeler.net>

This seems like an unlikely failure; basically you must have built
bcache for debug (which not many of us are doing on previous stable
series), and then be critically out of resources at the time that
bcache is registering.  Seems like more trouble than it's worth to
send it to -stable.

Mike