diff options
Diffstat (limited to 'drivers/md/linear.c')
-rw-r--r-- | drivers/md/linear.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 86f5d43..5975c99 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -21,6 +21,7 @@ #include <linux/seq_file.h> #include <linux/module.h> #include <linux/slab.h> +#include <trace/events/block.h> #include "md.h" #include "linear.h" @@ -101,8 +102,8 @@ static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks) sector_t sectors; if (j < 0 || j >= raid_disks || disk->rdev) { - printk(KERN_ERR "md/linear:%s: disk numbering problem. Aborting!\n", - mdname(mddev)); + pr_warn("md/linear:%s: disk numbering problem. Aborting!\n", + mdname(mddev)); goto out; } @@ -123,8 +124,8 @@ static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks) discard_supported = true; } if (cnt != raid_disks) { - printk(KERN_ERR "md/linear:%s: not enough drives present. Aborting!\n", - mdname(mddev)); + pr_warn("md/linear:%s: not enough drives present. Aborting!\n", + mdname(mddev)); goto out; } @@ -227,22 +228,22 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio) } do { - tmp_dev = which_dev(mddev, bio->bi_iter.bi_sector); + sector_t bio_sector = bio->bi_iter.bi_sector; + tmp_dev = which_dev(mddev, bio_sector); start_sector = tmp_dev->end_sector - tmp_dev->rdev->sectors; end_sector = tmp_dev->end_sector; data_offset = tmp_dev->rdev->data_offset; bio->bi_bdev = tmp_dev->rdev->bdev; - if (unlikely(bio->bi_iter.bi_sector >= end_sector || - bio->bi_iter.bi_sector < start_sector)) + if (unlikely(bio_sector >= end_sector || + bio_sector < start_sector)) goto out_of_bounds; if (unlikely(bio_end_sector(bio) > end_sector)) { /* This bio crosses a device boundary, so we have to * split it. */ - split = bio_split(bio, end_sector - - bio->bi_iter.bi_sector, + split = bio_split(bio, end_sector - bio_sector, GFP_NOIO, fs_bio_set); bio_chain(split, bio); } else { @@ -256,15 +257,18 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio) !blk_queue_discard(bdev_get_queue(split->bi_bdev)))) { /* Just ignore it */ bio_endio(split); - } else + } else { + if (mddev->gendisk) + trace_block_bio_remap(bdev_get_queue(split->bi_bdev), + split, disk_devt(mddev->gendisk), + bio_sector); generic_make_request(split); + } } while (split != bio); return; out_of_bounds: - printk(KERN_ERR - "md/linear:%s: make_request: Sector %llu out of bounds on " - "dev %s: %llu sectors, offset %llu\n", + pr_err("md/linear:%s: make_request: Sector %llu out of bounds on dev %s: %llu sectors, offset %llu\n", mdname(mddev), (unsigned long long)bio->bi_iter.bi_sector, bdevname(tmp_dev->rdev->bdev, b), @@ -275,7 +279,6 @@ out_of_bounds: static void linear_status (struct seq_file *seq, struct mddev *mddev) { - seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2); } |