From: Andrew Morton <akpm@linux-foundation.org>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Len Brown <lenb@kernel.org>,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
Adam Belay <ambx1@neo.rr.com>, Adam M Belay <abelay@mit.edu>,
Li Shaohua <shaohua.li@intel.com>,
Matthieu Castet <castet.matthieu@free.fr>,
Thomas Renninger <trenn@suse.de>,
Rene Herman <rene.herman@keyaccess.nl>,
Jaroslav Kysela <perex@perex.cz>
Subject: Re: [patch 6/8] PNP: replace pnp_resource_table with dynamically allocated resources
Date: Tue, 13 May 2008 19:42:41 -0700 [thread overview]
Message-ID: <20080513194241.d11664df.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080505224000.013817328@ldl.fc.hp.com>
On Mon, 05 May 2008 16:36:36 -0600 Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> PNP used to have a fixed-size pnp_resource_table for tracking the
> resources used by a device. This table often overflowed, so we've
> had to increase the table size, which wastes memory because most
> devices have very few resources.
>
> This patch replaces the table with a linked list of resources where
> the entries are allocated on demand.
>
> This removes messages like these:
>
> pnpacpi: exceeded the max number of IO resources
> 00:01: too many I/O port resources
>
> References:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=9535
> http://bugzilla.kernel.org/show_bug.cgi?id=9740
> http://lkml.org/lkml/2007/11/30/110
>
> This patch also changes the way PNP uses the IORESOURCE_UNSET,
> IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.
This patch kills my prehistoric dual PIII.
http://userweb.kernel.org/~akpm/p5135912.jpg
http://userweb.kernel.org/~akpm/config-vmm.txt
http://userweb.kernel.org/~akpm/dmesg-vmm.txt
next prev parent reply other threads:[~2008-05-14 2:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 22:36 [patch 0/8] PNP: convert resource table to dynamic list, v1 Bjorn Helgaas
2008-05-05 22:36 ` [patch 1/8] PNP: set IRQ index in sysfs "set irq" interface Bjorn Helgaas
2008-05-05 22:36 ` [patch 2/8] PNP: add detail to debug resource dump Bjorn Helgaas
2008-05-19 21:47 ` Rene Herman
2008-05-05 22:36 ` [patch 3/8] PNP: remove pnp_resource.index Bjorn Helgaas
2008-05-19 22:01 ` Rene Herman
2008-05-19 23:27 ` Bjorn Helgaas
2008-05-05 22:36 ` [patch 4/8] PNP: add pnp_resource_type() internal interface Bjorn Helgaas
2008-05-19 22:02 ` Rene Herman
2008-05-05 22:36 ` [patch 5/8] PNP: add pnp_resource_type_name() helper function Bjorn Helgaas
2008-05-19 22:03 ` Rene Herman
2008-05-05 22:36 ` [patch 6/8] PNP: replace pnp_resource_table with dynamically allocated resources Bjorn Helgaas
2008-05-14 2:42 ` Andrew Morton [this message]
2008-05-14 23:18 ` Bjorn Helgaas
2008-05-15 7:54 ` Rene Herman
2008-05-16 17:17 ` Bjorn Helgaas
2008-05-05 22:36 ` [patch 7/8] PNP: remove ratelimit on add resource failures Bjorn Helgaas
2008-05-05 22:36 ` [patch 8/8] PNP: dont sort by type in /sys/.../resources Bjorn Helgaas
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