linux-kernel - Re: [PATCH v2 1/5] mm: add numa node symlink for memory section in sysfs

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Message-ID: <alpine.DEB.2.00.0910221249030.26631@chino.kir.corp.google.com>
Date:	Thu, 22 Oct 2009 12:51:25 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Alex Chiang <achiang@...com>
cc:	akpm@...ux-foundation.org, Gary Hade <garyhade@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Badari Pulavarty <pbadari@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH v2 1/5] mm: add numa node symlink for memory section in
 sysfs

On Wed, 21 Oct 2009, Alex Chiang wrote:

> Commit c04fc586c (mm: show node to memory section relationship with
> symlinks in sysfs) created symlinks from nodes to memory sections, e.g.
> 
> /sys/devices/system/node/node1/memory135 -> ../../memory/memory135
> 
> If you're examining the memory section though and are wondering what
> node it might belong to, you can find it by grovelling around in
> sysfs, but it's a little cumbersome.
> 
> Add a reverse symlink for each memory section that points back to the
> node to which it belongs.
> 
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Cc: Gary Hade <garyhade@...ibm.com>
> Cc: Badari Pulavarty <pbadari@...ibm.com>
> Cc: Ingo Molnar <mingo@...e.hu>
> Signed-off-by: Alex Chiang <achiang@...com>

Acked-by: David Rientjes <rientjes@...gle.com>

Very helpful backlinks to memory section nodes even though I have lots of 
memory directories on some of my test machines :)
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