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Date: Mon, 16 Apr 2001 15:32:18 +0000
From: Pavel Machek <pavel@suse.cz>
To: Andre Hedrick <andre@linux-ide.org>
Cc: schwidefsky@de.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: Linux-Kernel Archive: No 100 HZ timer !
Message-ID: <20010416153216.C40@(none)>
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Hi!

> /*
>  * Timeouts for various operations:
>  */
> #define WAIT_DRQ        (5*HZ/100)      /* 50msec - spec allows up to 20ms */
> #ifdef CONFIG_APM
> #define WAIT_READY      (5*HZ)          /* 5sec - some laptops are very slow */

Broken broken broken. CONFIG_APM has *nothing* to do with machine being laptop.
Think ACPI, think mips handheld. You should assume 5seconds, always.

-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.