On 11/30/2015 01:11 PM, Thomas Gleixner wrote:
On Mon, 30 Nov 2015, Qais Yousef wrote:
Yes it would be much better to reuse it but wouldn't the runtime checks
against nr_cpu_ids create problems especially when CPUMASK_ON_STACK is
defined?
nr_cpu_ids == find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
OK. I can partially see your point. I can't see how the extra
coprocessor bits will be set in cpu_possible_mask and whether this will
affect normal linux operation (ie: will it think it can bring that cpu
up or migrate irqs to it?).
Since you don't see an issue with it, it must be just a missing gap in
my knowledge that I'll fill while doing this work.
Thanks,
Qais
