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>,
linux-pci@vger.kernel.org,
"Horst H. von Brand" <vonbrand@inf.utfsm.cl>,
Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Stefan Becker <chemobejk@gmail.com>,
"H. Peter Anvin" <hpa@zytor.com>, 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 v4 6/6] x86: allocate space within a region top-down
Date: Mon, 25 Oct 2010 14:01:54 -0700 [thread overview]
Message-ID: <20101025140154.66f1e1bd@jbarnes-desktop> (raw)
In-Reply-To: <20101014231852.536.42958.stgit@bob.kio>
On Thu, 14 Oct 2010 17:18:52 -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.
Applied this series to linux-next; assuming nothing blows up I'll send
it to Linus this week (previous versions got some testing and landed in
a separate branch so this should be fine).
--
Jesse Barnes, Intel Open Source Technology Center
next prev parent reply other threads:[~2010-10-25 21:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-14 23:18 [PATCH v4 0/6] PCI: allocate space top-down, not bottom-up Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 1/6] resources: ensure alignment callback doesn't allocate below available start Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 2/6] resources: support allocating space within a region from the top down Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 3/6] PCI: allocate bus resources " Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 4/6] x86/PCI: allocate space from the end of a region, not the beginning Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 5/6] x86: update iomem_resource end based on CPU physical address capabilities Bjorn Helgaas
2010-10-14 23:18 ` [PATCH v4 6/6] x86: allocate space within a region top-down Bjorn Helgaas
2010-10-25 21:01 ` Jesse Barnes [this message]
2010-10-25 21:08 ` Bjorn Helgaas
2010-10-25 21:15 ` Bjorn Helgaas
2010-10-25 21:17 ` Jesse Barnes
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