Merge branch 'md-next' into md-linus
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 377a8a3..df6f2c9 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -249,54 +249,49 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio)
{
char b[BDEVNAME_SIZE];
struct dev_info *tmp_dev;
- struct bio *split;
sector_t start_sector, end_sector, data_offset;
+ sector_t bio_sector = bio->bi_iter.bi_sector;
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
return;
}
- do {
- 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;
+ 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;
- if (unlikely(bio_sector >= end_sector ||
- bio_sector < start_sector))
- goto out_of_bounds;
+ 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_sector,
- GFP_NOIO, fs_bio_set);
- bio_chain(split, bio);
- } else {
- split = bio;
- }
+ if (unlikely(bio_end_sector(bio) > end_sector)) {
+ /* This bio crosses a device boundary, so we have to split it */
+ struct bio *split = bio_split(bio, end_sector - bio_sector,
+ GFP_NOIO, mddev->bio_set);
+ bio_chain(split, bio);
+ generic_make_request(bio);
+ bio = split;
+ }
- split->bi_iter.bi_sector = split->bi_iter.bi_sector -
- start_sector + data_offset;
+ bio->bi_bdev = tmp_dev->rdev->bdev;
+ bio->bi_iter.bi_sector = bio->bi_iter.bi_sector -
+ start_sector + data_offset;
- if (unlikely((bio_op(split) == REQ_OP_DISCARD) &&
- !blk_queue_discard(bdev_get_queue(split->bi_bdev)))) {
- /* Just ignore it */
- bio_endio(split);
- } else {
- if (mddev->gendisk)
- trace_block_bio_remap(bdev_get_queue(split->bi_bdev),
- split, disk_devt(mddev->gendisk),
- bio_sector);
- mddev_check_writesame(mddev, split);
- mddev_check_write_zeroes(mddev, split);
- generic_make_request(split);
- }
- } while (split != bio);
+ if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
+ !blk_queue_discard(bdev_get_queue(bio->bi_bdev)))) {
+ /* Just ignore it */
+ bio_endio(bio);
+ } else {
+ if (mddev->gendisk)
+ trace_block_bio_remap(bdev_get_queue(bio->bi_bdev),
+ bio, disk_devt(mddev->gendisk),
+ bio_sector);
+ mddev_check_writesame(mddev, bio);
+ mddev_check_write_zeroes(mddev, bio);
+ generic_make_request(bio);
+ }
return;
out_of_bounds:
