diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 56bcbeff00d9282f22e49a173982421be1fa5a63..6a75f039de21abf91998b995c107d46f67326777 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1337,7 +1337,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
 
 	if (i_done != page_cnt) {
 		spin_lock(&BTRFS_I(inode)->lock);
-		BTRFS_I(inode)->outstanding_extents++;
+		btrfs_mod_outstanding_extents(BTRFS_I(inode), 1);
 		spin_unlock(&BTRFS_I(inode)->lock);
 		btrfs_delalloc_release_space(inode, data_reserved,
 				start_index << PAGE_SHIFT,