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authorJens Axboe <axboe@fb.com>2014-04-09 10:53:21 -0600
committerJens Axboe <axboe@fb.com>2014-04-09 10:53:21 -0600
commitcb2da43e3d02b745408252fe4c447b23b1f4fc7b (patch)
tree478ee0ca7f83132a68f0cd7b1d7f68e7df14450d /block/blk-mq-sysfs.c
parente4043dcf30811f5db15181168e2aac172514302a (diff)
downloadkernel-cb2da43e3d02b745408252fe4c447b23b1f4fc7b.tar.gz
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>
Diffstat (limited to 'block/blk-mq-sysfs.c')
-rw-r--r--block/blk-mq-sysfs.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index b0ba264b0522..9176a6984857 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -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