linux-kernel - HP disk protection Re: Remn Yan <yan

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Message-ID: <20061014082608.GA3851@elf.ucw.cz>
Date:	Sat, 14 Oct 2006 10:26:08 +0200
From:	Pavel Machek <pavel@....cz>
To:	Burman Yan <yan_952@...mail.com>
Cc:	kronos.it@...il.com, linux-kernel@...r.kernel.org
Subject: HP disk protection Re: Remn Yan <yan_952@...mail.com> ha scritto:

On Fri 2006-10-13 20:32:48, Burman Yan wrote:
> >From: Luca Tettamanti <kronos.it@...il.com>

> >Burman Yan <yan_952@...mail.com> ha scritto:
> >> I would like to hear your remarks on this version.
> >
> >> +static ssize_t mdps_calibrate_store(struct device *dev,
> >> +                   struct device_attribute *attr, const char *buf, 
> >size_t count)
> >> +{
> >> +	mdps_calibrate_mouse();
> >> +	return count;
> >> +}
> >
> >No locking here?
> 
> I don't want to lock it here, since the mouse polling kthread is heavy as 
> it is.

> I'd rather report a wrong value of mouse position while recalibrating.
> The way I see it, if you're recalibrating your mouse, chances are you're 
> not playing at the same precise millisecond. In my opinion it's worth more 
> battery life.

Hmm, and are you sure it can't oops or something?
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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