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From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Bob Picco <bpicco@redhat.com>,
	Brian Bloniarz <phunge0@hotmail.com>,
	Charles Butterfield <charles.butterfield@nextcentury.com>,
	Denys Vlasenko <dvlasenk@redhat.com>, Ingo Molnar <mingo@elte.hu>,
	linux-pci@vger.kernel.org,
	"Horst H. von Brand" <vonbrand@inf.utfsm.cl>,
	"H. Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org, Stefan Becker <chemobejk@gmail.com>,
	Chuck Ebbert <cebbert@redhat.com>,
	Fabrice Bellet <fabrice@bellet.info>,
	Yinghai Lu <yinghai@kernel.org>,
	Leann Ogasawara <leann.ogasawara@canonical.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v5 9/9] x86: allocate space within a region top-down
Date: Tue, 26 Oct 2010 15:34:55 -0700	[thread overview]
Message-ID: <20101026153455.0fe4847f@jbarnes-desktop> (raw)
In-Reply-To: <20101026214154.29808.58672.stgit@bob.kio>

On Tue, 26 Oct 2010 15:41:54 -0600
Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> 
> Request that allocate_resource() use available space from high addresses
> first, rather than the default of using low addresses first.
> 
> The most common place this makes a difference is when we move or assign
> new PCI device resources.  Low addresses are generally scarce, so it's
> better to use high addresses when possible.  This follows Windows practice
> for PCI allocation.
> 
> Reference: https://bugzilla.kernel.org/show_bug.cgi?id=16228#c42
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> ---

Ok, applied this version to -next.  It's been going through distros and
lots of testing despite a lack of recent coverage in PCI -next, so I'm
planning to send it to Linus this week.  We probably won't catch much
more until it hits his tree anyway...

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center

  reply	other threads:[~2010-10-26 22:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-26 21:41 [PATCH v5 0/9] PCI: allocate space top-down, not bottom-up Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 1/9] resources: add a default alignf to simplify find_resource() Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 2/9] resources: factor out resource_clip() " Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 3/9] resources: ensure callback doesn't allocate outside available space Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 4/9] resources: handle overflow when aligning start of available area Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 5/9] resources: support allocating space within a region from the top down Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 6/9] PCI: allocate bus resources " Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 7/9] x86/PCI: allocate space from the end of a region, not the beginning Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 8/9] x86: update iomem_resource end based on CPU physical address capabilities Bjorn Helgaas
2010-10-26 21:41 ` [PATCH v5 9/9] x86: allocate space within a region top-down Bjorn Helgaas
2010-10-26 22:34   ` Jesse Barnes [this message]
2010-10-27  6:23     ` Ingo Molnar

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