blk-mq: simplify blk_mq_hw_sysfs_cpus_show()
Now that we have a cpu mask of CPUs that are mapped to a specific hardware queue, we can just iterate that to display the sysfs num-hw-queue/cpu_list file. Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -246,16 +246,12 @@ static ssize_t blk_mq_hw_sysfs_tags_show(struct blk_mq_hw_ctx *hctx, char *page)
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static ssize_t blk_mq_hw_sysfs_cpus_show(struct blk_mq_hw_ctx *hctx, char *page)
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{
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unsigned int i, queue_num, first = 1;
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unsigned int i, first = 1;
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ssize_t ret = 0;
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blk_mq_disable_hotplug();
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for_each_online_cpu(i) {
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queue_num = hctx->queue->mq_map[i];
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if (queue_num != hctx->queue_num)
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continue;
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for_each_cpu(i, hctx->cpumask) {
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if (first)
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ret += sprintf(ret + page, "%u", i);
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else
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