powerpc: Set nr_cpu_ids early and use it to free PACAs
Without this, "holes" in the CPU numbering can cause us to free too many PACAs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -203,7 +203,7 @@ void __init free_unused_pacas(void)
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{
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int new_size;
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new_size = PAGE_ALIGN(sizeof(struct paca_struct) * num_possible_cpus());
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new_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);
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if (new_size >= paca_size)
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return;
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@ -509,6 +509,9 @@ void __init smp_setup_cpu_maps(void)
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*/
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cpu_init_thread_core_maps(nthreads);
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/* Now that possible cpus are set, set nr_cpu_ids for later use */
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nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
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free_unused_pacas();
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}
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#endif /* CONFIG_SMP */
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