[PATCH v7 08/10] blk-mq: use hk cpus only when isolcpus=io_queue is enabled

Christoph Hellwig hch at lst.de
Thu Jul 3 02:01:58 PDT 2025


On Wed, Jul 02, 2025 at 06:33:58PM +0200, Daniel Wagner wrote:
>  const struct cpumask *blk_mq_possible_queue_affinity(void)
>  {
> +	if (housekeeping_enabled(HK_TYPE_IO_QUEUE))
> +		return housekeeping_cpumask(HK_TYPE_IO_QUEUE);
> +
>  	return cpu_possible_mask;
>  }

I'm no expert on the housekeeping stuff, but why isn't the
housekeeping_enabled check done in housekeeping_cpumask directly so
that the drivers could use housekeeping_cpumask without a blk-mq
wrapper?




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