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Message-ID: <20060807182047.GC26224@atjola.homenet>
Date: Mon, 7 Aug 2006 20:20:47 +0200
From: Björn Steinbrink <B.Steinbrink@....de>
To: Shem Multinymous <multinymous@...il.com>
Cc: Pavel Machek <pavel@...e.cz>, Robert Love <rlove@...ve.org>,
Jean Delvare <khali@...ux-fr.org>,
Greg Kroah-Hartman <gregkh@...e.de>,
Alan Cox <alan@...rguk.ukuu.org.uk>,
linux-kernel@...r.kernel.org, hdaps-devel@...ts.sourceforge.net
Subject: Re: [PATCH 04/12] hdaps: Correct readout and remove nonsensical attributes
On 2006.08.07 19:30:55 +0300, Shem Multinymous wrote:
> Hi Pavel,
>
> On 8/7/06, Pavel Machek <pavel@...e.cz> wrote:
> >> + int total, ret;
> >> + for (total=READ_TIMEOUT_MSECS; total>0; total-=RETRY_MSECS) {
> >
> >Could we go from 0 to timeout, not the other way around?
>
> Sure.
> (That's actually vanilla hdapsd code, moved around...)
Maybe you could convert that to sth. like this along the way?
int ret;
unsigned long timeout = jiffies + msec_to_jiffies(READ_TIMEOUT_MSECS);
for (;;) {
ret = thinkpad_ec_lock();
if (ret)
return ret;
ret = __hdaps_update(0);
thinkpad_ec_unlock();
if (ret != -EBUSY)
return ret;
if (time_after(timeout, jiffies))
break;
msleep(RETRY_MSECS);
}
return ret;
Rationale: http://lkml.org/lkml/2005/7/14/133 - it's also listed on the
kerneljanitors todo list.
Regards
Björn
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