linux-kernel - Re: [PATCH 2/4] x86: convert threshold_bank.cpus from atomic_t to refcount

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Message-ID: <20170220111727.7vohleiu2btmsx3g@pd.tnic>
Date:   Mon, 20 Feb 2017 12:17:27 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Elena Reshetova <elena.reshetova@...el.com>
Cc:     linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
        x86@...nel.org, sparclinux@...r.kernel.org,
        linux-s390@...r.kernel.org, kvm@...r.kernel.org,
        peterz@...radead.org, gregkh@...uxfoundation.org,
        davem@...emloft.net, tglx@...utronix.de, mingo@...hat.com,
        tony.luck@...el.com, hpa@...or.com,
        Hans Liljestrand <ishkamiel@...il.com>,
        Kees Cook <keescook@...omium.org>,
        David Windsor <dwindsor@...il.com>
Subject: Re: [PATCH 2/4] x86: convert threshold_bank.cpus from atomic_t to
 refcount_t

On Mon, Feb 20, 2017 at 01:06:19PM +0200, Elena Reshetova wrote:
> refcount_t type and corresponding API should be
> used instead of atomic_t when the variable is used as
> a reference counter. This allows to avoid accidental
> refcounter overflows that might lead to use-after-free
> situations.
> 
> Signed-off-by: Elena Reshetova <elena.reshetova@...el.com>
> Signed-off-by: Hans Liljestrand <ishkamiel@...il.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> Signed-off-by: David Windsor <dwindsor@...il.com>

That SOB chain tells me that you wrote the patch and Hans, Kees and
David handled it in some way and the last one - David - is sending it to
me. It doesn't look like that though.

So what are you trying to express with it?

Documentation/process/submitting-patches.rst has some info on the whole
SOB deal:

11) Sign your work — the Developer's Certificate of Origin
----------------------------------------------------------
..


-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.