From 0341aafb7f3313bcedc6811a098500be85f3fc77 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 29 Apr 2010 09:28:21 +0200
Subject: [PATCH] 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>
---
 block/blk-lib.c | 5 +++--
 1 file 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 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
 		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;