linux-kernel - Re: [ckrm-tech] [PATCH 6/7] BC: kernel memory (core)

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Message-Id: <1156883382.5408.153.camel@localhost.localdomain>
Date:	Tue, 29 Aug 2006 13:29:42 -0700
From:	Dave Hansen <haveblue@...ibm.com>
To:	Kirill Korotaev <dev@...ru>
Cc:	Andrew Morton <akpm@...l.org>, Rik van Riel <riel@...hat.com>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Matt Helsley <matthltc@...ibm.com>,
	Alexey Dobriyan <adobriyan@...l.ru>,
	Oleg Nesterov <oleg@...sign.ru>, devel@...nvz.org,
	Pavel Emelianov <xemul@...nvz.org>
Subject: Re: [ckrm-tech] [PATCH 6/7] BC: kernel memory (core)

On Tue, 2006-08-29 at 18:58 +0400, Kirill Korotaev wrote:
> @@ -274,8 +274,14 @@ struct page {
>         unsigned int gfp_mask;
>         unsigned long trace[8];
>  #endif
> +#ifdef CONFIG_BEANCOUNTERS
> +       union {
> +               struct beancounter      *page_bc;
> +       } bc;
> +#endif
>  }; 

I know you're probably saving this union for when you put some userspace
stuff in here or something.  But, for now, it would probably be best
just to leave it as a plain struct, or even an anonymous union.

You probably had to use gcc 2 when this was written and couldn't use
anonymous unions, right?

-- Dave

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