On Friday 21 September 2012, Chunhe Lan wrote: > On 08/10/2012 09:27 AM, Arnd Bergmann wrote: > > On Friday 10 August 2012, Chunhe Lan wrote: > > > > cond_resched(); > > mdelay(ms); > > > > sets off alarm bells, and I would always replace that with msleep(). > I think that it does not replace with msleep(). > When the time of sleep is very short, program should not been scheduled > in the context. Because it expends the more time. > A time measured in miliseconds is never "very short" for the scheduler, a lot of things can happen during that time span. The code I quoted also does not care too much about accuracy, otherwise it would adapt the time in the mdelay based on whether the cond_resched() actually schedules to another thread. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
