In message <[EMAIL PROTECTED]> you write:
> Changes to array.c expose cpus_allowed in proc/pid/stat.
Call me old fashioned, but I prefer my bitmasks in hex.
Please also consider changing:
still_running:
c = goodness(prev, this_cpu, prev->active_mm);
next = prev;
to:
still_running:
if (prev & (1 << this_cpu)) {
c = goodness(prev, this_cpu, prev->active_mm);
next = prev;
}
Otherwise, you will keep scheduling a RT process forever on a
disallowed CPU on which it is already running. And even a non-RT
process will stick on its disallowed CPU as long as nothing else runs
there.
Learnt this the hard way from the hotplug CPU patch...
Rusty.
--
Premature optmztion is rt of all evl. --DK
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