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From: Pavel Machek <pavel@ucw.cz>
To: Adrian Bunk <bunk@stusta.de>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org
Subject: Re: IDE: strange WAIT_READY dependency on APM
Date: Thu, 9 Dec 2004 11:53:02 +0100	[thread overview]
Message-ID: <20041209105302.GA1131@elf.ucw.cz> (raw)
In-Reply-To: <20041209034438.GF22324@stusta.de>

Hi!

> IDE contains the following strange code:
> 
> <--  snip  -->
> 
> #if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE)
> #define WAIT_READY      (5*HZ)          /* 5sec - some laptops are very slow */
> #else
> #define WAIT_READY      (HZ/10)         /* 100msec - should be instantaneous */
> #endif /* CONFIG_APM || CONFIG_APM_MODULE */
> 
> <--  snip  -->
> 
> On the one hand APM isn't enabled on all laptops.
> On the other hand, this also affects regular PCs with APM support (or 
> using a distribution kernel with APM support).
> 
> The time for the !APM case was already increased from 30msec in 2.4 .
> Isn't there a timeout that is suitable for all cases?

We should probably always make it the "big" timeout. Or put there
HZ/10, and see who screams :-).

								Pavel
-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!

  reply	other threads:[~2004-12-09 10:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-09  3:44 IDE: strange WAIT_READY dependency on APM Adrian Bunk
2004-12-09 10:53 ` Pavel Machek [this message]
2004-12-10 15:20 ` Alan Cox
2004-12-11 17:30   ` [2.6 patch] IDE: remove " Adrian Bunk

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