Messages in this thread | | | Date | Tue, 28 Sep 1999 16:07:36 -0700 (PDT) | From | Matthew Jacob <> | Subject | Re: Current wisdom on SA_INTERRUPT |
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> that "SA_INTERRUPT is a no-op left for historical reasons". > > That certainly doesn't seem to be the case in irq.c. It appears to be used > like this: if SA_INTERRUPT isn't set, enable interrupts during interrupt > handling. > > So what is this flag for? How, when, and why should it be used?
If you have latency requirements such that you cannot tolerate other interrups occurring during your irs, set SA_INTERRUPT.
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