On Fri, Dec 14, 2018 at 02:27:43PM +0800, Huang Ying wrote: > diff --git a/mm/huge_memory.c b/mm/huge_memory.c > index 1cec1eec340e..644cb5d6b056 100644 > --- a/mm/huge_memory.c > +++ b/mm/huge_memory.c > @@ -33,6 +33,8 @@ > #include <linux/page_idle.h> > #include <linux/shmem_fs.h> > #include <linux/oom.h> > +#include <linux/delayacct.h> > +#include <linux/swap.h> swap.h is already #included in this file.