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block: stop passing 'cpu' to all percpu stats methods

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All of part_stat_* and related methods are used with preempt disabled,
so there is no need to pass cpu around to allow of them.  Just call
smp_processor_id() as needed.

Suggested-by: Jens Axboe <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Mike Snitzer 2018-12-06 11:41:18 -05:00 • committed by Jens Axboe
commit 112f158f66
7 changed files with 46 additions and 52 deletions
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7
drivers/md/md.c
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@ -334,7 +334,6 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
const int sgrp = op_stat_group(bio_op(bio));
struct mddev *mddev = q->queuedata;
unsigned int sectors;
int cpu;
blk_queue_split(q, &bio);
@ -359,9 +358,9 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
md_handle_request(mddev, bio);
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[sgrp]);
part_stat_add(cpu, &mddev->gendisk->part0, sectors[sgrp], sectors);
part_stat_lock();
part_stat_inc(&mddev->gendisk->part0, ios[sgrp]);
part_stat_add(&mddev->gendisk->part0, sectors[sgrp], sectors);
part_stat_unlock();
return BLK_QC_T_NONE;