block: fix bad use of min() on different types

Just cast the page size to sector_t, that will always fit.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/block/blk-lib.c b/block/blk-lib.c
index 886c3f9e1be4..d0216b9f22d4 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -124,6 +124,7 @@ struct bio_batch
 static void bio_batch_end_io(struct bio *bio, int err)
 {
         struct bio_batch *bb = bio->bi_private;
+
         if (err) {
                 if (err == -EOPNOTSUPP)
                         set_bit(BIO_EOPNOTSUPP, &bb->flags);
@@ -186,8 +187,8 @@ submit:
                 if (flags & BLKDEV_IFL_WAIT)
                         bio->bi_private = &bb;
 
-                while(nr_sects != 0) {
-                        sz = min(PAGE_SIZE >> 9 , nr_sects);
+                while (nr_sects != 0) {
+                        sz = min((sector_t) PAGE_SIZE >> 9 , nr_sects);
                         if (sz == 0)
                                 /* bio has maximum size possible */
                                 break;