If MADV_PAGEOUT is not defined (e.g., on AlmaLinux 8), compilation will fail. Let's fix that like khugepaged.c does by conditionally defining MADV_PAGEOUT.

Reported-by: Mirsad Goran Todorovac mirsad.todorovac@alu.unizg.hr Fixes: 69c66add5663 ("selftests/vm: anon_cow: test COW handling of anonymous memory") Cc: Andrew Morton akpm@linux-foundation.org Cc: Shuah Khan shuah@kernel.org Signed-off-by: David Hildenbrand david@redhat.com --- tools/testing/selftests/mm/cow.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c index 16216d893d96..0eb2e8180aa5 100644 --- a/tools/testing/selftests/mm/cow.c +++ b/tools/testing/selftests/mm/cow.c @@ -30,6 +30,9 @@ #include "../kselftest.h" #include "vm_util.h"

+#ifndef MADV_PAGEOUT +#define MADV_PAGEOUT 21 +#endif #ifndef MADV_COLLAPSE #define MADV_COLLAPSE 25 #endif