From 4b125dd408d54487dc8843b9553502aa0c4167f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>
Date: Wed, 20 Feb 2019 19:07:12 +0100
Subject: fix POSIX_FADV_DONTNEED/_NOREUSE on s390x

On s390x, POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE have different
values than on all other architectures that Linux supports.

Handle this difference by wrapping their definitions in
include/fcntl.h in #ifdef, so that arch/s390x/bits/fcntl.h can
override them.
---
 arch/s390x/bits/fcntl.h | 3 +++
 include/fcntl.h         | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/arch/s390x/bits/fcntl.h b/arch/s390x/bits/fcntl.h
index 1eca6ba5..a231efb4 100644
--- a/arch/s390x/bits/fcntl.h
+++ b/arch/s390x/bits/fcntl.h
@@ -38,3 +38,6 @@
 #define F_GETOWN_EX 16
 
 #define F_GETOWNER_UIDS 17
+
+#define POSIX_FADV_DONTNEED   6
+#define POSIX_FADV_NOREUSE    7
diff --git a/include/fcntl.h b/include/fcntl.h
index 4d91338b..f6c192f5 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -66,8 +66,10 @@ int posix_fallocate(int, off_t, off_t);
 #define POSIX_FADV_RANDOM     1
 #define POSIX_FADV_SEQUENTIAL 2
 #define POSIX_FADV_WILLNEED   3
+#ifndef POSIX_FADV_DONTNEED
 #define POSIX_FADV_DONTNEED   4
 #define POSIX_FADV_NOREUSE    5
+#endif
 
 #undef SEEK_SET
 #undef SEEK_CUR
-- 
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