Re: [Xen-devel] [PATCH 2/2] sched: credit2: use boot CPU info for CPU #0

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 22.08.14 at 19:15, <dario.faggioli@xxxxxxxxxx> wrote:
> -    /* Figure out which runqueue to put it in */
> -    /* NB: cpu 0 doesn't get a STARTING callback, so we hard-code it to 
> runqueue 0. */
> +    /* cpu 0 doesn't get a STARTING callback, so use boot CPU data for it */
>      if ( cpu == 0 )
> -        rqi = 0;
> +        rqi = boot_cpu_to_socket();

A change like this should also convert the "cpu == 0" condition to
something guaranteeing this is the boot CPU (both for the [unlikely]
case of the boot CPU being other than CPU 0 and for the [more
likely] case of CPU 0 having got brought down and then being
brought back up again.

Jan


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