diff --git a/fs/buffer.c b/fs/buffer.c
index a4b8242..f99c509 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1283,11 +1283,11 @@
  * Look up the bh in this cpu's LRU.  If it's there, move it to the head.
  */
 static struct buffer_head *
-lookup_bh_lru(struct block_device *bdev, sector_t block, int size)
+lookup_bh_lru(struct block_device *bdev, sector_t block, unsigned size)
 {
 	struct buffer_head *ret = NULL;
 	struct bh_lru *lru;
-	int i;
+	unsigned int i;
 
 	check_irqs_on();
 	bh_lru_lock();
@@ -1319,7 +1319,7 @@
  * NULL
  */
 struct buffer_head *
-__find_get_block(struct block_device *bdev, sector_t block, int size)
+__find_get_block(struct block_device *bdev, sector_t block, unsigned size)
 {
 	struct buffer_head *bh = lookup_bh_lru(bdev, block, size);
 
@@ -1347,7 +1347,7 @@
  * attempt is failing.  FIXME, perhaps?
  */
 struct buffer_head *
-__getblk(struct block_device *bdev, sector_t block, int size)
+__getblk(struct block_device *bdev, sector_t block, unsigned size)
 {
 	struct buffer_head *bh = __find_get_block(bdev, block, size);
 
@@ -1361,7 +1361,7 @@
 /*
  * Do async read-ahead on a buffer..
  */
-void __breadahead(struct block_device *bdev, sector_t block, int size)
+void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
 {
 	struct buffer_head *bh = __getblk(bdev, block, size);
 	if (likely(bh)) {
@@ -1381,7 +1381,7 @@
  *  It returns NULL if the block was unreadable.
  */
 struct buffer_head *
-__bread(struct block_device *bdev, sector_t block, int size)
+__bread(struct block_device *bdev, sector_t block, unsigned size)
 {
 	struct buffer_head *bh = __getblk(bdev, block, size);