On Wednesday 04 April 2012, Rafal Prylowski wrote:
> >
> > According to ATA specification, maximum IORDY pulse width is 1250ns,
> > so I'll set timeout to 2ms (I should check this before posting the driver..).
>
> 2ms is far too big value... Should be 2us.
Ok, in this case, don't use jiffies. I guess it was already flawed because
jiffies doesn't get updated while you are in an interrupt handler.
You could use ktime_get to get a high-resolution time stamp to compare to,
but it depends on how accurate your clocksource is.
Arnd
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