block: use SECTOR_SHIFT bio_add_hw_page

Use the SECTOR_SHIFT magic constant instead of the magic number.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jinyoung Choi <j-young.choi@samsung.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230724165433.117645-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/bio.c b/block/bio.c
index 72488ec..445be4b 100644 (file)
--- a/block/bio.c
+++ b/block/bio.c
@@ -1007,7 +1007,7 @@ int bio_add_hw_page(struct request_queue *q, struct bio *bio,
        if (WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)))
                return 0;
 
-       if (((bio->bi_iter.bi_size + len) >> 9) > max_sectors)
+       if (((bio->bi_iter.bi_size + len) >> SECTOR_SHIFT) > max_sectors)
                return 0;
 
        if (bio->bi_vcnt > 0) {