linux-kernel - Re: [PULL] module, param and stop

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Date:	Sat, 25 Oct 2008 16:08:19 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Arjan van de Ven <arjan@...radead.org>,
	Hugh Dickins <hugh@...itas.com>, walt <w41ter@...il.com>
Subject: Re: [PULL] module, param and stop_machine patches

On Sat, 25 Oct 2008, Linus Torvalds wrote:
>
> -early_initcall(stop_machine_init);
> +core_initcall(stop_machine_init);

Btw, this obviously implies that all stop_machine() users had better be 
later in the boot sequence.

And no, I didn't check that exhaustively. There's the tracing 
infrastructure, and it's also core_initcall(), but it should be linked 
later. And module loading will happen later. mm/page_alloc.c has special 
code for bootup, and intel-rng.c should be a normal driver.

So it _should_ be ok. But I really didn't test. And my default kernel 
config doesn't even have CONFIG_STOP_MACHINE enabled, so I'm not the best 
person to test. 

		Linus
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