linux-kernel - Re: [PATCH v2] ACPI: Add sysfs links from memory device to memblocks

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Date:	Tue, 26 Feb 2013 10:16:44 -0700
From:	Toshi Kani <toshi.kani@...com>
To:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Cc:	"rjw@...k.pl" <rjw@...k.pl>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"vasilis.liaskovitis@...fitbricks.com" 
	<vasilis.liaskovitis@...fitbricks.com>
Subject: Re: [PATCH v2] ACPI: Add sysfs links from memory device to memblocks

On Tue, 2013-02-26 at 05:37 +0000, Yasuaki Ishimatsu wrote:
> 2013/02/26 6:02, Toshi Kani wrote:
> > In order to eject a memory device object represented as "PNP0C80:%d"
> > in sysfs, its associated memblocks (system/memory/memory%d) need to
> > be off-lined.  However, there is no user friendly way to correlate
> > between a memory device object and its memblocks in sysfs.
> > 
> > This patch creates sysfs links to memblocks under a memory device
> > object so that a user can easily checks and manipulates its memblocks
> > in sysfs.
> > 
> > For example, when PNP0C80:05 is associated with memory8 and memory9,
> > the following two links are created under PNP0C80:05.  This allows
> > a user to access memory8/9 directly from PNP0C80:05.
> > 
> >    # ll /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C80:05
> >    lrwxrwxrwx. memory8 -> ../../../system/memory/memory8
> >    lrwxrwxrwx. memory9 -> ../../../system/memory/memory9
> > 
> > Signed-off-by: Toshi Kani <toshi.kani@...com>
> > ---
> 
> I confirmed that the patch has no problem.
> Feel free to add:
> 
> Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
> Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>

Great!  Thanks Yasuaki!
-Toshi


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