linux-kernel - Re: [patch 1/3] fastboot: Create a "asynchronous" initlevel

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Message-ID: <20080720083530.1bc60ead@infradead.org>
Date:	Sun, 20 Jul 2008 08:35:30 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Rene Herman <rene.herman@...access.nl>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Paul Diefenbaugh <paul.s.diefenbaugh@...el.com>,
	Andy Grover <andrew.grover@...el.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: [patch 1/3] fastboot: Create a "asynchronous" initlevel

On Sun, 20 Jul 2008 16:20:06 +0200
Rene Herman <rene.herman@...access.nl> wrote:

> On 20-07-08 13:10, Arjan van de Ven wrote:
> 
> > On Sun, 20 Jul 2008 09:23:31 +0200
> > Rene Herman <rene.herman@...access.nl> wrote:
> > 
> >> Yes, I see. Unfortunately, WITH your patches, driver_probe_done()
> >> would also no longer be safe when run from a late_initcall() it
> >> would appear.
> > 
> > true for now (but see below)
> > 
> >> I have the sneaking suspicion that this is a bit of a fundamental
> >> issue. Turning some of the driver level (6) async basicaly removes
> >> the ordering between drivers and late_initcall (level 7).
> > 
> > I was hoping to not need this ordering. 
> 
> May have found an issue with 3/3 for this same reason. 


> > Thankfully it doesn't destroy it, the reason for this is that level
> > 6 itself tends to take long enough to get benefits. It's just that
> > if we can get both 6 and 7 it's nicer. But if we end up needing to
> > sync, so be it.
> 
> I worry...

ok you convinced me... I'll post a followon patch that will have this
shortly once it finishes compiling/booting.

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