Messages in this thread | | | Date | Fri, 26 Mar 1999 11:03:20 +0000 (GMT) | From | Matthew Kirkwood <> | Subject | Re: mdelay question |
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On Fri, 26 Mar 1999, Alan Cox wrote:
> > a sigifigant time (ie, 0.25 to 1 second) if you haven't disabled > > interrupts? ie, will you completely monopolize the cpu, or will the > > scheduler kick you off until sometime shortly after the delay runs out? > > If you want more than about 1/100th of a second use a loop yielding CPU > time. Better yet sleep and wakeup if your card can IRQ the event > > At minimum > > unsigned long time=jiffies+(msec*HZ)/1000; > while(time_before(time, jiffies)) > schedule(); > > or in an irq/bh set a timer to go off
Don't we now have schedule_timeout() to do this?
Matthew.
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