aboutsummaryrefslogtreecommitdiff
path: root/drivers/md
diff options
context:
space:
mode:
authorChristoph Hellwig2021-01-26 15:52:42 +0100
committerJens Axboe2021-01-27 09:51:48 -0700
commit32637385b834062d785a261841980ae7cffea007 (patch)
treee5c21354d9a0f2f96e40b9b441901a2b8ab96d3e /drivers/md
parenta78f18da669242ad57237070f298212e342bf602 (diff)
md: simplify sync_page_io
Use an on-stack bio and biovec for the single page synchronous I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Acked-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index e2b9dbb6e888..6a27f52007c8 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);