From f4d9139f1394cbe2de158ab8771fea4e587004d4 Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Mon, 9 Jan 2023 18:12:55 +0100
Subject: [PATCH] selftests/mm: define MADV_PAGEOUT to fix compilation issues

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.

Link: https://lkml.kernel.org/r/20230109171255.488749-1-david@redhat.com
Fixes: 69c66add5663 ("selftests/vm: anon_cow: test COW handling of anonymous memory")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reported-by: Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 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 16216d8..0eb2e81 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
-- 
2.7.4