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Commit cb2da43e authored by Jens Axboe's avatar Jens Axboe
Browse files

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: default avatarJens Axboe <axboe@fb.com>
parent e4043dcf

block/blk-mq-sysfs.c

+2 −6
Original line number Diff line number Diff line
@@ -246,16 +246,12 @@ static ssize_t blk_mq_hw_sysfs_tags_show(struct blk_mq_hw_ctx *hctx, char *page) 


static ssize_t blk_mq_hw_sysfs_cpus_show(struct blk_mq_hw_ctx *hctx, char *page)

{

	unsigned int i, queue_num, first = 1;

	unsigned int i, first = 1;

	ssize_t ret = 0;



	blk_mq_disable_hotplug();



	for_each_online_cpu(i) {

		queue_num = hctx->queue->mq_map[i];

		if (queue_num != hctx->queue_num)

			continue;



	for_each_cpu(i, hctx->cpumask) {

		if (first)

			ret += sprintf(ret + page, "%u", i);

		else