linux-kernel - Re: [PATCH v2] mm: expand documentation over __read

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Message-ID: <202005071052.1522C624@keescook>
Date:   Thu, 7 May 2020 10:52:22 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     cl@...ux.com, akpm@...ux-foundation.org, arnd@...db.de,
        willy@...radead.org, aquini@...hat.com, linux-mm@...ck.org,
        linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mm: expand documentation over __read_mostly

On Thu, May 07, 2020 at 04:14:24PM +0000, Luis Chamberlain wrote:
> __read_mostly can easily be misused by folks, its not meant for
> just read-only data. There are performance reasons for using it, but
> we also don't provide any guidance about its use. Provide a bit more
> guidance over its use.
> 
> Acked-by: Christoph Lameter <cl@...ux.com>
> Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook