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Message-ID: <48B548CA.8040503@suse.de>
Date: Wed, 27 Aug 2008 14:30:02 +0200
From: Hannes Reinecke <hare@...e.de>
To: Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Disable partition scan
Hi all again,
Hannes Reinecke wrote:
> Hi all,
>
> for some setups (eg dmraid or multipathing) the in-kernel partition scan
> is pointless; the (block) partitions won't be used anywhere. Instead the
> system will be using kpartx-generated device-mapper devices.
> Worse, on some setups (RAID0 dmraid or active/passive multipath devices)
> the in-kernel partition scan will generate plenty of I/O errors as the
> partitions table might not be accessible or invalid for this device.
>
> This patch implements a new kernel command-line option 'no_partition_scan'
> which will switch off the partition scan globally. The partition scan can
> be re-enabled for individual devices by echoing any positive number smaller
> than the number of minors into
> /sys/class/block/XXX/range
>
> and rescanning the device.
>
> Please apply.
>
Yeah, cool. One should take care not to mangle to patches.
Should teach me to use git properly. Oh well.
Corrected patch attached.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@...e.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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