linux-kernel - Re: [patch 5/3] fastboot: sync the async execution before late

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Message-ID: <20080720164000.GA10119@elte.hu>
Date:	Sun, 20 Jul 2008 18:40:00 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org,
	Rene Herman <rene.herman@...access.nl>,
	Simon Arlott <simon@...e.lp0.eu>,
	Alan Stern <stern@...land.harvard.edu>,
	Daniel Walker <dwalker@...sta.com>
Subject: Re: [patch 5/3] fastboot: sync the async execution before
	late_initcall and move level 6s (sync) first


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

> From: Arjan van de Ven <arjan@...ux.intel.com>
> Subject: [PATCH] fastboot: sync the async execution before late_initcall and move level 6s (sync) first
> 
> Rene Herman points out several cases where it's basically needed to 
> have all level 6/6a/6s calls done before the level 7 (late_initcall) 
> code runs. This patch adds a sync point in the transition from the 6's 
> to the 7's.
> 
> Second, this patch makes sure that level 6s (sync) happens before the 
> async code starts, and puts a user in driver/pci in this category that 
> needs to happen before device init.

incidentally, this fixed an USB related boot hang i found today on one 
of my testsystems running tip/master (which had patches 1-2-3 already), 
which i was about to report. Good spotting Rene! I've applied patches 
4/5 to tip/fastboot.

	Ingo
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