selftests/mm: include linux/mman.h

thuge-gen defines MAP_HUGE_* macros that are provided by linux/mman.h
since 4.15. Removes the macros and includes linux/mman.h instead.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Edward Liaw <[email protected]>
Reviewed-by: Carlos Llamas <[email protected]>
Reviewed-by: Muhammad Usama Anjum <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Shuah Khan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: edliaw

tools/testing/selftests/mm/thuge-gen.c

@@ -15,6 +15,7 @@
 
 #define _GNU_SOURCE 1
 #include <sys/mman.h>
+#include <linux/mman.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/ipc.h>
@@ -28,10 +29,6 @@
 #include "vm_util.h"
 #include "../kselftest.h"
 
-#define MAP_HUGE_2MB    (21 << MAP_HUGE_SHIFT)
-#define MAP_HUGE_1GB    (30 << MAP_HUGE_SHIFT)
-#define MAP_HUGE_SHIFT  26
-#define MAP_HUGE_MASK   0x3f
 #if !defined(MAP_HUGETLB)
 #define MAP_HUGETLB	0x40000
 #endif