diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index 78c9f0c..5542c28 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -349,7 +349,17 @@
 	error = inode_change_ok(inode, attr);
 	if (error)
 		return error;
-	return inode_setattr(inode, attr);
+
+	if ((attr->ia_valid & ATTR_SIZE) &&
+	    attr->ia_size != i_size_read(inode)) {
+		error = vmtruncate(inode, attr->ia_size);
+		if (error)
+			return error;
+	}
+
+	setattr_copy(inode, attr);
+	mark_inode_dirty(inode);
+	return 0;
 }
 
 const struct inode_operations omfs_file_inops = {