btrfs: 32-bit type problems

An assorted set of casts to get rid of the warnings on 32-bit archs.
Signed-off-by: NChris Mason <chris.mason@oracle.com>

fs/btrfs/ctree.c

@@ -1389,7 +1389,7 @@ int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf)
 	ret = BTRFS_LEAF_DATA_SIZE(root) - leaf_space_used(leaf, 0, nritems);
 	if (ret < 0) {
 		printk("leaf free space ret %d, leaf data size %lu, used %d nritems %d\n",
-		       ret, BTRFS_LEAF_DATA_SIZE(root),
+		       ret, (unsigned long) BTRFS_LEAF_DATA_SIZE(root),
 		       leaf_space_used(leaf, 0, nritems), nritems);
 	}
 	return ret;

fs/btrfs/extent-tree.c

@@ -149,7 +149,7 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(struct
 	if (ret)
 		return NULL;
 
-	block_group = (struct btrfs_block_group_cache *)ptr;
+	block_group = (struct btrfs_block_group_cache *)(unsigned long)ptr;
 
 
 	if (block_group->key.objectid <= bytenr && bytenr <=
@@ -279,7 +279,7 @@ struct btrfs_block_group_cache *btrfs_find_block_group(struct btrfs_root *root,
 		if (ret)
 			break;
 
-		cache = (struct btrfs_block_group_cache *)ptr;
+		cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
 		last = cache->key.objectid + cache->key.offset;
 		used = btrfs_block_group_used(&cache->item);
 
@@ -537,7 +537,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
 		if (ret)
 			break;
 
-		cache = (struct btrfs_block_group_cache *)ptr;
+		cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
 		err = write_one_cache_group(trans, root,
 					    path, cache);
 		/*
@@ -1541,7 +1541,7 @@ int btrfs_read_block_groups(struct btrfs_root *root)
 				found_key.objectid + found_key.offset - 1,
 				bit | EXTENT_LOCKED, GFP_NOFS);
 		set_state_private(block_group_cache, found_key.objectid,
-				  (u64)cache);
+				  (unsigned long)cache);
 
 		if (key.objectid >=
 		    btrfs_super_total_bytes(&info->super_copy))

fs/btrfs/extent_map.c

@@ -2654,8 +2654,8 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
 
 		cur = min(len, (unsigned long)(PAGE_CACHE_SIZE -
 					       src_off_in_page));
-		cur = min(cur, (unsigned long)(PAGE_CACHE_SIZE -
-					       dst_off_in_page));
+		cur = min_t(unsigned long, cur,
+			(unsigned long)(PAGE_CACHE_SIZE - dst_off_in_page));
 
 		copy_pages(extent_buffer_page(dst, dst_i),
 			   extent_buffer_page(dst, src_i),
@@ -2707,7 +2707,7 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
 		if (dst_i == 0)
 			dst_off_in_page += start_offset;
 
-		cur = min(len, src_off_in_page + 1);
+		cur = min_t(unsigned long, len, src_off_in_page + 1);
 		cur = min(cur, dst_off_in_page + 1);
 		move_pages(extent_buffer_page(dst, dst_i),
 			   extent_buffer_page(dst, src_i),

fs/btrfs/file.c

@@ -188,7 +188,7 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
 	while (size > 0) {
 		page = pages[i];
 		kaddr = kmap_atomic(page, KM_USER0);
-		cur_size = min(PAGE_CACHE_SIZE - page_offset, size);
+		cur_size = min_t(size_t, PAGE_CACHE_SIZE - page_offset, size);
 		write_extent_buffer(leaf, kaddr + page_offset, ptr, cur_size);
 		kunmap_atomic(kaddr, KM_USER0);
 		page_offset = 0;

fs/btrfs/inode.c

@@ -1606,7 +1606,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
 			extent_start;
 		ptr = btrfs_file_extent_inline_start(item) + extent_offset;
 		map = kmap(page);
-		copy_size = min(PAGE_CACHE_SIZE - page_offset,
+		copy_size = min_t(u64, PAGE_CACHE_SIZE - page_offset,
 				size - extent_offset);
 
 		em->block_start = EXTENT_MAP_INLINE;