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blk-mq: simplify blk_mq_hw_sysfs_cpus_show()

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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>
This commit is contained in:
Jens Axboe 2014-04-09 10:53:21 -06:00
parent e4043dcf30
commit cb2da43e3d
1 changed files with 2 additions and 6 deletions
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8
block/blk-mq-sysfs.c
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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)
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