From 85614c6e2fb791b742941a8f98ea1851cf705240 Mon Sep 17 00:00:00 2001
From: Stefan Roesch <shr@devkernel.io>
Date: Tue, 28 Feb 2023 12:39:35 -0800
Subject: add support for KSM

This adds support for KSM (kernel samepage merging). It adds a new
boolean parameter called MemoryKSM to enable the feature. The feature
can only be enabled with newer kernels.
---
 src/basic/missing_prctl.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/basic')

diff --git a/src/basic/missing_prctl.h b/src/basic/missing_prctl.h
index 016085bb02..7d9e395c92 100644
--- a/src/basic/missing_prctl.h
+++ b/src/basic/missing_prctl.h
@@ -20,3 +20,7 @@
 #ifndef PR_MDWE_REFUSE_EXEC_GAIN
 #define PR_MDWE_REFUSE_EXEC_GAIN 1
 #endif
+
+#ifndef PR_SET_MEMORY_MERGE
+#define PR_SET_MEMORY_MERGE 67
+#endif
-- 
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