linux-kernel - Re: [PATCH] raid: make RAID autodetect default a KConfig option

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Message-ID: <20080922082728.GB6601@elte.hu>
Date:	Mon, 22 Sep 2008 10:27:28 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...radead.org>, neilb@...e.de
Cc:	linux-kernel@...r.kernel.org, neilb@...e.de, davej@...hat.com
Subject: Re: [PATCH] raid: make RAID autodetect default a KConfig option


* Arjan van de Ven <arjan@...radead.org> wrote:

> From 812bf9a448d96375a3aec5c51764d74cace85abb Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven <arjan@...ux.intel.com>
> Date: Sun, 21 Sep 2008 15:44:32 -0700
> Subject: [PATCH] raid: make RAID autodetect default a KConfig option
> 
> RAID autodetect has the side effect of requiring synchronisation of 
> all device drivers, which can make the boot several seconds longer 
> (I've measured 7 on one of my laptops).... even for systems that don't 
> have RAID setup for the root filesystem (the only FS where this 
> matters).
> 
> This patch makes the default for autodetect a config option; either 
> way the user can always override via the kernel command line.

Neil, if you agree with this patch, could you please send your Acked-by 
line? This patch depends on a clean-up in init/do_mounts_md.c that is in 
the fastboot tree so it would be logistically easier/better if we could 
queue this up towards upstream via tip/fastboot.

	Ingo
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