On Sun, Apr 15, 2018 at 03:08:56AM +0800, Peng Hao wrote: > userfaultfd.c: In function ‘hugetlb_release_pages’: > userfaultfd.c:145:25: error: ‘FALLOC_FL_PUNCH_HOLE’ undeclared > (first use in this function) > > Signed-off-by: Peng Hao <peng.h...@zte.com.cn> > --- > tools/testing/selftests/vm/userfaultfd.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/testing/selftests/vm/userfaultfd.c > b/tools/testing/selftests/vm/userfaultfd.c > index de2f9ec..d8fe447 100644 > --- a/tools/testing/selftests/vm/userfaultfd.c > +++ b/tools/testing/selftests/vm/userfaultfd.c > @@ -68,6 +68,7 @@ > #include <linux/userfaultfd.h> > #include <setjmp.h> > #include <stdbool.h> > +#include <linux/falloc.h> The FALLOC_FL_PUNCH_HOLE definition should come from #include <fcntl.h>. What are the versions of your kernel and the libc-development package?
> #ifdef __NR_userfaultfd > > -- > 1.8.3.1 > -- Sincerely yours, Mike.
