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

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Message-ID: <alpine.DEB.2.21.1805080753590.1849@nuc-kabylake>
Date:   Tue, 8 May 2018 07:54:15 -0500 (CDT)
From:   Christopher Lameter <cl@...ux.com>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
cc:     tglx@...utronix.de, arnd@...db.de, keescook@...omium.org,
        luto@...capital.net, longman@...hat.com, viro@...iv.linux.org.uk,
        willy@...radead.org, ebiederm@...ssion.com,
        linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: expland documentation over __read_mostly

On Mon, 7 May 2018, Luis R. Rodriguez 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 it use.

Acked-by: Christoph Lameter <cl@...ux.com>