linux-kernel - Re: [ 37/38] PCI : ability to relocate assigned pci-resources

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Message-ID: <20121126185359.GD21012@kroah.com>
Date:	Mon, 26 Nov 2012 10:53:59 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Ram Pai <linuxram@...ibm.com>
Cc:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	alan@...rguk.ukuu.org.uk, Jesse Barnes <jbarnes@...tuousgeek.org>,
	Andrew Worsley <amworsley@...il.com>,
	Michal Ludvig <mludvig@...ix.net.nz>
Subject: Re: [ 37/38] PCI : ability to relocate assigned pci-resources

On Sat, Nov 24, 2012 at 09:41:41AM +0800, Ram Pai wrote:
> On Fri, Nov 23, 2012 at 11:29:20AM -0200, Herton Ronaldo Krzesinski wrote:
> > On Wed, Nov 21, 2012 at 04:40:20PM -0800, Greg Kroah-Hartman wrote:
> > > 3.0-stable review patch.  If anyone has any objections, please let me know.
> > > 
> > > ------------------
> > > 
> > > From: Ram Pai <linuxram@...ibm.com>
> > > 
> > > commit 2bbc6942273b5b3097bd265d82227bdd84b351b2 upstream.
> > > 
> > > Currently pci-bridges are allocated enough resources to satisfy their immediate
> > > requirements.  Any additional resource-requests fail if additional free space,
> > > contiguous to the one already allocated, is not available. This behavior is not
> > > reasonable since sufficient contiguous resources, that can satisfy the request,
> > > are available at a different location.
> > > 
> > > This patch provides the ability to expand and relocate a allocated resource.
> > > 
> > > 	v2: Changelog: Fixed size calculation in pci_reassign_resource()
> > > 	v3: Changelog : Split this patch. The resource.c changes are already
> > > 			upstream. All the pci driver changes are in here.
> > > 
> > > Signed-off-by: Ram Pai <linuxram@...ibm.com>
> > > Signed-off-by: Jesse Barnes <jbarnes@...tuousgeek.org>
> > > Cc: Andrew Worsley <amworsley@...il.com>
> > > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > 
> > This change is said to bring a regression:
> > http://comments.gmane.org/gmane.linux.kernel.pci/11666
> > 
> > fixed by:
> > commit 47ea91b4052d9e94b9dca5d7a3d947fbebd07ba9
> > Resource: fix wrong resource window calculation
> > 
> > Which wasn't applied with this series for 3.0.
> 
> You are right.  We need to apply that fix along with this patch.

Thanks, now added to the tree.

greg k-h
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