From 5032cdb6d82544fc9e01ef46501d726a66fa931e Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Tue, 25 Oct 2022 08:16:00 -0600
Subject: [PATCH] Add MADV constants

---
 src/header/sys_mman/mod.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/header/sys_mman/mod.rs b/src/header/sys_mman/mod.rs
index e0c1c711ff..e3fe954997 100644
--- a/src/header/sys_mman/mod.rs
+++ b/src/header/sys_mman/mod.rs
@@ -14,6 +14,12 @@ pub mod sys;
 #[path = "redox.rs"]
 pub mod sys;
 
+pub const MADV_NORMAL: c_int = 0;
+pub const MADV_RANDOM: c_int = 1;
+pub const MADV_SEQUENTIAL: c_int = 2;
+pub const MADV_WILLNEED: c_int = 3;
+pub const MADV_DONTNEED: c_int = 4;
+
 pub const MAP_SHARED: c_int = 0x0001;
 pub const MAP_PRIVATE: c_int = 0x0002;
 pub const MAP_TYPE: c_int = 0x000F;