linux-kernel - Re: [RFC] schedule_timeout

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Message-ID: <20080721213327.4b3b440e@infradead.org>
Date:	Mon, 21 Jul 2008 21:33:27 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [RFC] schedule_timeout_range()

On Tue, 22 Jul 2008 13:56:29 +1000
Nick Piggin <nickpiggin@...oo.com.au> wrote:

> Rather than specific "deadline" values (which we can't guarantee
> anyway), or vague "can defer" values, I would prefer just a small
> selection of maybe orders of magnitude flags, maybe SECONDS,
> MILLISECONDS, MICROSECONDS which gives an amount of delay the kernel
> might add to the timer.

the problem is that many of these are "I'd like a timeout between 30
and ..eh 40 seconds" (think scsi timeouts or networkcard timeouts)

it's not just specific slack units.

> 
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