linux-kernel - Re: [PATCH] Double check memmap is actually valid with a memmap has unexpected holes

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Message-ID: <20090506192035.GB21993@n2100.arm.linux.org.uk>
Date:	Wed, 6 May 2009 20:20:35 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Johannes Weiner <hannes@...xchg.org>, akpm@...ux-foundation.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	hartleys@...ionengravers.com, mcrapet@...il.com,
	fred99@...olina.rr.com, linux-arm-kernel@...ts.arm.linux.org.uk
Subject: Re: [PATCH] Double check memmap is actually valid with a memmap
	has unexpected holes

On Wed, May 06, 2009 at 03:31:00PM +0100, Mel Gorman wrote:
> On Tue, May 05, 2009 at 01:06:53PM +0200, Johannes Weiner wrote:
> > I think we also need to fix up show_mem(). 
> 
> As it turns out, ARM has its own show_mem(). I don't see how, but ARM
> must not be using lib/show_mem.c even though it compiles it.

That happens because lib/show_mem.c is a library file, and since there
isn't an unresolved reference to show_mem in from within the object
files ld is asked to link, the version in the .a library won't be
brought in.
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