diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 70fbb29..8f8e133 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -322,21 +322,15 @@
 	}
 }
 
-/*
- * Expanding truncates are not allowed.
- */
 static int hugetlb_vmtruncate(struct inode *inode, loff_t offset)
 {
 	pgoff_t pgoff;
 	struct address_space *mapping = inode->i_mapping;
 
-	if (offset > inode->i_size)
-		return -EINVAL;
-
 	BUG_ON(offset & ~HPAGE_MASK);
 	pgoff = offset >> PAGE_SHIFT;
 
-	inode->i_size = offset;
+	i_size_write(inode, offset);
 	spin_lock(&mapping->i_mmap_lock);
 	if (!prio_tree_empty(&mapping->i_mmap))
 		hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff);