Current wisdom on SA_INTERRUPT

Bradley D. LaRonde (brad@ltc.com)
Tue, 28 Sep 1999 18:27:22 -0400


What is the current wisdom on SA_INTERRUPT?

A comment in signal.h about it says "dummy -- ignored". Elsewhere it says
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?

Thanks.

Regards,
Brad

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/