dm: dm-zoned: use __bio_add_page for adding single metadata page

dm-zoned uses bio_add_page() for adding a single page to a freshly created
metadata bio.

Use __bio_add_page() instead as adding a single page to a new bio is
always guaranteed to succeed.

This brings us a step closer to marking bio_add_page() __must_check

Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/55a0c8dad7550379647873b579dc7cfbe0191f96.1685532726.git.johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 8f0896a6990b115c7a0285f8b4d787466a0e9755..9d3cca8e3dc9e11a01c73b2d22036490bc6d003f 100644 (file)
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -577,7 +577,7 @@ static struct dmz_mblock *dmz_get_mblock_slow(struct dmz_metadata *zmd,
        bio->bi_iter.bi_sector = dmz_blk2sect(block);
        bio->bi_private = mblk;
        bio->bi_end_io = dmz_mblock_bio_end_io;
-       bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
+       __bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
        submit_bio(bio);
 
        return mblk;
@@ -728,7 +728,7 @@ static int dmz_write_mblock(struct dmz_metadata *zmd, struct dmz_mblock *mblk,
        bio->bi_iter.bi_sector = dmz_blk2sect(block);
        bio->bi_private = mblk;
        bio->bi_end_io = dmz_mblock_bio_end_io;
-       bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
+       __bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
        submit_bio(bio);
 
        return 0;
@@ -752,7 +752,7 @@ static int dmz_rdwr_block(struct dmz_dev *dev, enum req_op op,
        bio = bio_alloc(dev->bdev, 1, op | REQ_SYNC | REQ_META | REQ_PRIO,
                        GFP_NOIO);
        bio->bi_iter.bi_sector = dmz_blk2sect(block);
-       bio_add_page(bio, page, DMZ_BLOCK_SIZE, 0);
+       __bio_add_page(bio, page, DMZ_BLOCK_SIZE, 0);
        ret = submit_bio_wait(bio);
        bio_put(bio);