linux-kernel - Re: [PATCH 1/3] kexec: Add debug printing of kimage table entries

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Message-ID: <CAMuHMdWfk5awf3ycuY0ULyzk-8gc209p0DGDXwYEM2si6KpCuw@mail.gmail.com>
Date:	Tue, 15 Oct 2013 22:03:58 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	linux-m68k <linux-m68k@...ts.linux-m68k.org>,
	kexec@...ts.infradead.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] kexec: Add debug printing of kimage table entries

On Tue, Oct 15, 2013 at 9:25 PM, Eric W. Biederman
<ebiederm@...ssion.com> wrote:
> Geert Uytterhoeven <geert@...ux-m68k.org> writes:
>> Print a list of pages to be copied if debugging is enabled.
>> Consecutive entries are merged to reduce screen clutter.
>
> Why is this desirable?
>
> I can understand this as debugging code to understand what is happening,
> but why would we want to maintain this print statement long term?

Because the next person who ports kexec to a new platform may need it,
so he doesn't have to reimplement the wheel?

It's disabled by default.

It also serves as documentation for the indirection page.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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