From 7389355aaeec20ea02ef26fa17328ddd2659f5ee Mon Sep 17 00:00:00 2001
From: Michal Biesek <michalbiesek@gmail.com>
Date: Fri, 11 Aug 2023 23:34:48 +0200
Subject: [PATCH] Add `MADV_DONTNEED_LOCKED` definition from linux v5.18

see
  linux commit 9457056ac426e5ed0671356509c8dcce69f8dee0
  mm: madvise: MADV_DONTNEED_LOCKED
---
 libc/sysv/consts.sh                     | 1 +
 libc/sysv/consts/MADV_DONTNEED_LOCKED.S | 2 ++
 libc/sysv/consts/madv.h                 | 1 +
 3 files changed, 4 insertions(+)
 create mode 100644 libc/sysv/consts/MADV_DONTNEED_LOCKED.S

diff --git a/libc/sysv/consts.sh b/libc/sysv/consts.sh
index 038619359..cc7972b84 100755
--- a/libc/sysv/consts.sh
+++ b/libc/sysv/consts.sh
@@ -271,6 +271,7 @@ syscon	madv	MADV_COLD				20			20			127			127			127			127			127			127			# TODO: a
 syscon	madv	MADV_PAGEOUT				21			21			127			127			127			127			127			127			# TODO: add support ?
 syscon	madv	MADV_POPULATE_READ				22			22			127			127			127			127			127			127			# TODO: add support ?
 syscon	madv	MADV_POPULATE_WRITE				23			23			127			127			127			127			127			127			# TODO: add support ?
+syscon	madv	MADV_DONTNEED_LOCKED				24			24			127			127			127			127			127			127			# TODO: add support ?
 syscon	madv	MADV_DOFORK				11			11			127			127			127			127			127			127			# TODO(jart): what is it?
 syscon	madv	MADV_DONTDUMP				16			16			127			127			127			127			127			127			# see MAP_CONCEAL in OpenBSD; TODO(jart): what is it?
 syscon	madv	MADV_DONTFORK				10			10			127			127			127			127			127			127			# TODO(jart): what is it?
diff --git a/libc/sysv/consts/MADV_DONTNEED_LOCKED.S b/libc/sysv/consts/MADV_DONTNEED_LOCKED.S
new file mode 100644
index 000000000..bce077856
--- /dev/null
+++ b/libc/sysv/consts/MADV_DONTNEED_LOCKED.S
@@ -0,0 +1,2 @@
+#include "libc/sysv/consts/syscon.internal.h"
+.syscon madv,MADV_DONTNEED_LOCKED,24,24,127,127,127,127,127,127
diff --git a/libc/sysv/consts/madv.h b/libc/sysv/consts/madv.h
index 5b00895c1..59c00f4d1 100644
--- a/libc/sysv/consts/madv.h
+++ b/libc/sysv/consts/madv.h
@@ -26,6 +26,7 @@ extern const unsigned MADV_COLD;
 extern const unsigned MADV_PAGEOUT;
 extern const unsigned MADV_POPULATE_READ;
 extern const unsigned MADV_POPULATE_WRITE;
+extern const unsigned MADV_DONTNEED_LOCKED;
 
 #define MADV_NORMAL     0
 #define MADV_RANDOM     1