linux-kernel - Re: [PATCH v3 3/3] mm: Change __remove_pages() to call release_mem_region

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Message-ID: <1365712204.32127.118.camel@misato.fc.hp.com>
Date:	Thu, 11 Apr 2013 14:30:04 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, linuxram@...ibm.com,
	guz.fnst@...fujitsu.com, tmac@...com,
	isimatu.yasuaki@...fujitsu.com, wency@...fujitsu.com,
	tangchen@...fujitsu.com, jiang.liu@...wei.com
Subject: Re: [PATCH v3 3/3] mm: Change __remove_pages() to call
 release_mem_region_adjustable()

On Wed, 2013-04-10 at 15:13 -0700, David Rientjes wrote:
> On Wed, 10 Apr 2013, Toshi Kani wrote:
> 
> > Changed __remove_pages() to call release_mem_region_adjustable().
> > This allows a requested memory range to be released from
> > the iomem_resource table even if it does not match exactly to
> > an resource entry but still fits into.  The resource entries
> > initialized at bootup usually cover the whole contiguous
> > memory ranges and may not necessarily match with the size of
> > memory hot-delete requests.
> > 
> > If release_mem_region_adjustable() failed, __remove_pages() emits
> > a warning message and continues to proceed as it was the case
> > with release_mem_region().  release_mem_region(), which is defined
> > to __release_region(), emits a warning message and returns no error
> > since a void function.
> > 
> > Signed-off-by: Toshi Kani <toshi.kani@...com>
> > Reviewed-by : Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
> 
> Acked-by: David Rientjes <rientjes@...gle.com>

Thanks David!
-Toshi

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