Re: [PATCH] Poll-based IDE driver
From: Dave Jones
Date: Wed Oct 08 2003 - 11:50:28 EST
On Wed, Oct 08, 2003 at 09:36:36AM -0700, Andre Hedrick wrote:
>
> Does not matter, priority is to get content to platter and the hell with
> everything else.
I don't buy this. Without correct udelay()'s, how is code like this..
for (i = 0; i < 10; i++) {
dump_udelay(1);
if (OK_STAT((stat = hwif->INB(IDE_STATUS_REG)), good, bad))
return 0;
}
expected to work ? It won't wait for 10usec at all, but be over almost instantly.
Ramming commands at the drive before its status has settled doesn't strike
me as a particularly safe thing to do.
Dave
--
Dave Jones http://www.codemonkey.org.uk
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