On 7/7/07, Rajat Jain <Rajat.Jain@xxxxxxxxxxxx> wrote:
Hi, > And if you don't want the kernel to preempt you you can disable > preemption while doing your sleeping... not very well behaved kernel > code, but you can do it... Huh? So something like following is allowed? preempt_disable(); udelay(5); preempt_enable(); ????? I must admit, this is a shock to me.
Hmmm even I think this is not possible, because these functions call the schedule() function, which should not be done in atomic context. It does a check for in_atomic() which checks the preempt_counter().
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