diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 20bb056b7ecac27180cccfc570f6d8cf98992a68..af2f0408c6e46688029eafa736301fa54da014c1 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4109,14 +4109,13 @@ int extent_write_locked_range(struct inode *inode, u64 start, u64 end,
 	return ret;
 }
 
-int extent_writepages(struct extent_io_tree *tree,
-		      struct address_space *mapping,
+int extent_writepages(struct address_space *mapping,
 		      struct writeback_control *wbc)
 {
 	int ret = 0;
 	struct extent_page_data epd = {
 		.bio = NULL,
-		.tree = tree,
+		.tree = &BTRFS_I(mapping->host)->io_tree,
 		.extent_locked = 0,
 		.sync_io = wbc->sync_mode == WB_SYNC_ALL,
 	};
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 752ad87e40d56d6861715a339ea58356664bd8df..0bfd4aeb822dd95f42e1cbe9ecc76fb5dc06a41d 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -411,8 +411,7 @@ int extent_invalidatepage(struct extent_io_tree *tree,
 int extent_write_full_page(struct page *page, struct writeback_control *wbc);
 int extent_write_locked_range(struct inode *inode, u64 start, u64 end,
 			      int mode);
-int extent_writepages(struct extent_io_tree *tree,
-		      struct address_space *mapping,
+int extent_writepages(struct address_space *mapping,
 		      struct writeback_control *wbc);
 int btree_write_cache_pages(struct address_space *mapping,
 			    struct writeback_control *wbc);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0aadf17c528febd7f06340d187ac31df5d5220f4..775249f03dd321616df3a19a2089e66d68c3d808 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8897,10 +8897,7 @@ static int btrfs_writepage(struct page *page, struct writeback_control *wbc)
 static int btrfs_writepages(struct address_space *mapping,
 			    struct writeback_control *wbc)
 {
-	struct extent_io_tree *tree;
-
-	tree = &BTRFS_I(mapping->host)->io_tree;
-	return extent_writepages(tree, mapping, wbc);
+	return extent_writepages(mapping, wbc);
 }
 
 static int