linux-kernel - Re: [PATCH] Allow populate_rootfs() to be called early (was: acpi dsts loading and populate

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Message-ID: <20080221190455.GA7275@lst.de>
Date:	Thu, 21 Feb 2008 20:04:55 +0100
From:	Christoph Hellwig <hch@....de>
To:	??ric Piel <Eric.Piel@...mplin-utc.net>
Cc:	Sergey Vlasov <vsu@...linux.ru>, Christoph Hellwig <hch@....de>,
	dsdt@...gusch.at, len.brown@...el.com,
	linux-kernel@...r.kernel.org, Linus Torvalds <torvalds@...l.org>,
	trenn@...e.de
Subject: Re: [PATCH] Allow populate_rootfs() to be called early (was: acpi dsts loading and populate_rootfs)

On Thu, Feb 21, 2008 at 08:02:36PM +0100, ??ric Piel wrote:
> It's been a week and no one has screamed, so I guess the idea looks fine
> to everyone :-) 
> 
> Here is a boot tested patch for integration. In addition to the previous
> version, it removes also rootfs_initcall(), and uses fs_initcall_sync().
> There should be absolutely no difference in behaviour as there was no
> user of fs_initcall_sync() in the kernel.
> 
> I'm not sure what should be the best tree to go through. Maybe the ACPI
> tree, as all this is needed for CONFIG_ACPI_CUSTOM_DSDT_INITRD...

Actually I've just got a report today where we get an uninitialized
spinlock due to this in -mm.  It's probably possible to work around it,
though.

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