preemptive kernels and the use of smp_processor_id()

[Rajat Jain]

Hi Valdis,

Understood.

>> I though preemptible only means that a process can only be preempted 
>> (not moved to another core) under following situations:

>> 1) An interrupt happens (In case of timer, it could put the process back in queue if its time slice expired).

>Actually, in case of any interrupt, be it timer or I/O or NMI or whatever.

So, essentially a scheduler can kick in while returning from ANY sort of interrupt (and not just timer interrupt), right?

Thanks,

Rajat