diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-01-26 15:52:42 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-01-27 09:51:48 -0700 |
| commit | 32637385b834062d785a261841980ae7cffea007 (patch) | |
| tree | e5c21354d9a0f2f96e40b9b441901a2b8ab96d3e /drivers/md/md.c | |
| parent | a78f18da669242ad57237070f298212e342bf602 (diff) | |
| download | linux-32637385b834062d785a261841980ae7cffea007.tar.bz2 | |
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/md.c')
| -rw-r--r-- | drivers/md/md.c | 26 |
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); |