Use an on-stack bio and biovec for the single page synchronous I/O.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/md/md.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index e2b9dbb6e888f6..6a27f52007c871 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1021,29 +1021,29 @@ int md_super_wait(struct mddev *mddev)
int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
struct page *page, int op, int op_flags, bool metadata_op)
{
- struct bio *bio = md_bio_alloc_sync(rdev->mddev);
- int ret;
+ struct bio bio;
+ struct bio_vec bvec;
+
+ bio_init(&bio, &bvec, 1);
if (metadata_op && rdev->meta_bdev)
- bio_set_dev(bio, rdev->meta_bdev);
+ bio_set_dev(&bio, rdev->meta_bdev);
else
- bio_set_dev(bio, rdev->bdev);
- bio_set_op_attrs(bio, op, op_flags);
+ bio_set_dev(&bio, rdev->bdev);
+ bio.bi_opf = op | op_flags;
if (metadata_op)
- bio->bi_iter.bi_sector = sector + rdev->sb_start;
+ bio.bi_iter.bi_sector = sector + rdev->sb_start;
else if (rdev->mddev->reshape_position != MaxSector &&
(rdev->mddev->reshape_backwards ==
(sector >= rdev->mddev->reshape_position)))
- bio->bi_iter.bi_sector = sector + rdev->new_data_offset;
+ bio.bi_iter.bi_sector = sector + rdev->new_data_offset;
else
- bio->bi_iter.bi_sector = sector + rdev->data_offset;
- bio_add_page(bio, page, size, 0);
+ bio.bi_iter.bi_sector = sector + rdev->data_offset;
+ bio_add_page(&bio, page, size, 0);
- submit_bio_wait(bio);
+ submit_bio_wait(&bio);
- ret = !bio->bi_status;
- bio_put(bio);
- return ret;
+ return !bio.bi_status;
}
EXPORT_SYMBOL_GPL(sync_page_io);
--
2.29.2
--
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