cpusets not cpu hotplug aware

From: Anton Blanchard
Date: Mon Aug 21 2006 - 09:24:55 EST


We have a bug report where sched_setaffinity fails for cpus that are
hotplug added after boot. Nathan found this suspicious piece of code:

void __init cpuset_init_smp(void)
top_cpuset.cpus_allowed = cpu_online_map;
top_cpuset.mems_allowed = node_online_map;

Any reason we statically set the top level cpuset to the boot time cpu
online map?

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