zonefs: use __bio_add_page for adding single page to bio

The zonefs superblock reading code uses bio_add_page() to add a page to a
newly created bio. bio_add_page() can fail, but the return value is
never checked.

Use __bio_add_page() as adding a single page to a newly created bio is
guaranteed to succeed.

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

Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/04c9978ccaa0fc9871cd4248356638d98daccf0c.1685532726.git.johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index 23b8b299c64e1e7a8bbdbcfb64b06fcdf053d725..9350221abfc55196cd0a824eeaa91869cd97ece1 100644 (file)
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -1128,7 +1128,7 @@ static int zonefs_read_super(struct super_block *sb)
 
        bio_init(&bio, sb->s_bdev, &bio_vec, 1, REQ_OP_READ);
        bio.bi_iter.bi_sector = 0;
-       bio_add_page(&bio, page, PAGE_SIZE, 0);
+       __bio_add_page(&bio, page, PAGE_SIZE, 0);
 
        ret = submit_bio_wait(&bio);
        if (ret)