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/multipath.c b/drivers/md/multipath.c
index 97befd5cc0e3..5b4e2918663a 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -141,8 +141,6 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio)
         multipath_conf_t *conf = mddev->private;
         struct multipath_bh * mp_bh;
         struct multipath_info *multipath;
-        const int rw = bio_data_dir(bio);
-        int cpu;
 
         if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
                 md_barrier_request(mddev, bio);
@@ -154,12 +152,6 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio)
         mp_bh->master_bio = bio;
         mp_bh->mddev = mddev;
 
-        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();
-
         mp_bh->path = multipath_map(conf);
         if (mp_bh->path < 0) {
                 bio_endio(bio, -EIO);