what are you trying to implement?
jan-simon.
Hugo Varotto wrote:
>
> Hi,
>
> I'm currently doing some stuff with SMP kernels, and I'd like to know
> which task is currently running in which CPU. I know that the variable
> "current" is a pointer to a struct task that is currently running in the
> CPU executing that portion of code. However, I'm not completely sure how
> to get which task is currently running in the other CPUs.
>
> In particular, if smp_processor_id() returns me CPU 0, I'd like to know
> which task is running in CPU 1 ( or 2 or 3 ).
>
> The only solution that I found is to go through all the runqueue, and
> check the "has_cpu" field and "processor" field ( similar to how the
> goodness function work ). However, I think that is very inefficient.
>
> Does anybody know of other ( more efficient ) way of doing this ? I'm
> working with the 2.2.x series
>
> Thanks in advance,
>
> Hugo
>
> --
> Hugo Varotto
> Computer Science Dept.
> University of Pittsburgh
> hvarotto@cs.pitt.edu
> http://www.cs.pitt.edu/FORTS
>
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