IRQ masking

Michael Liao (michael_l@hotmail.com)
Tue, 21 Jul 1998 02:59:38 PDT

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Hi, folks
I am hacking the source kernel recently, I found when IRQ is
triggered, Linux kernel always *BLOCK(or MASK)* the IRQ and UNBLOCK it
after the IRQ has been called. I wonder why IRQs should always been
BLOCK first even in fast_IRQ? Can anyone help me?

Michael L.
1998/7/21

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