-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Monday, February 05, 2007 3:03 PM
>Nope. irq routines are a stack. if apic_in_service_vector could return
>the wrong value. ack_APIC_irq() which use the same information would
>acknowledge the wrong irq. If there was actually any danger of
>mis-computing that information I would just pass it from the interrupt
>service routine stash it in a per cpu variable and then read it out.
>But the apic already has registers doing that, so I was lazy and used
>what was available. It should be the common case that we need that
>information.
OK.
I wonder if current kernel support different cpu handle irq request for
different device at the same time.
YH