linux-kernel - Re: [PATCH 2/3] kernel/sysctl: support handling command line aliases

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Date:   Tue, 31 Mar 2020 14:35:12 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        linux-mm@...ck.org, Ivan Teterevkov <ivan.teterevkov@...anix.com>,
        Michal Hocko <mhocko@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        "Guilherme G . Piccoli" <gpiccoli@...onical.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: Re: [PATCH 2/3] kernel/sysctl: support handling command line aliases

On Mon, Mar 30, 2020 at 01:55:34PM +0200, Vlastimil Babka wrote:
> We can now handle sysctl parameters on kernel command line, but historically
> some parameters introduced their own command line equivalent, which we don't
> want to remove for compatibility reasons. We can however convert them to the
> generic infrastructure with a table translating the legacy command line
> parameters to their sysctl names, and removing the one-off param handlers.
> 
> This patch adds the support and makes the first conversion to demonstrate it,
> on the (deprecated) numa_zonelist_order parameter.
> 
> Signed-off-by: Vlastimil Babka <vbabka@...e.cz>

Reviewed-by: Luis Chamberlain <mcgrof@...nel.org>

  Luis