md: move io accounting out of personalities into md_make_request

While I generally prefer letting personalities do as much as possible,
given that we have a central md_make_request anyway we may as well use
it to simplify code.
Also this centralises knowledge of ->gendisk which will help later.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 9db8ee0614a4..3048c1704f40 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -288,23 +288,15 @@ static int linear_stop (mddev_t *mddev)
 
 static int linear_make_request (struct request_queue *q, struct bio *bio)
 {
-        const int rw = bio_data_dir(bio);
         mddev_t *mddev = q->queuedata;
         dev_info_t *tmp_dev;
         sector_t start_sector;
-        int cpu;
 
         if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
                 md_barrier_request(mddev, bio);
                 return 0;
         }
 
-        cpu = part_stat_lock();
-        part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
-        part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw],
-                      bio_sectors(bio));
-        part_stat_unlock();
-
         rcu_read_lock();
         tmp_dev = which_dev(mddev, bio->bi_sector);
         start_sector = tmp_dev->end_sector - tmp_dev->rdev->sectors;