On Thu 2008-12-25 16:24:27, Matthew Wilcox wrote: > On Thu, Dec 25, 2008 at 08:01:29PM +0100, Pavel Machek wrote: > > On Mon 2008-12-22 15:11:57, Andrew Patterson wrote: > > > ASPM: Use msleep instead of cpu_relax during link retraining > > > > > > The cpu_relax() function can be a noop on certain architectures > > > like IA-64 when CPU threads are disabled, so use msleep instead > > > during link retraining busy/wait loop. > > > > Author clearly wanted to do a busy loop... why do you think 10msec > > delay here is acceptable? > > 10ms? I see a 1ms sleep. Yes... IIRC msleep will sleep for up-to 1/HZ on non-highres systems. > Yes, the subsequent test should be of reg16 instead of jiffies. Thanks. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
