linux-kernel - [PATCH v2 3/3] KSM: Add config to control mark_new

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Date:	Sun,  9 Nov 2014 02:01:43 +0300
From:	Timofey Titovets <nefelim4ag@...il.com>
To:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:	nefelim4ag@...il.com, marco.antonio.780@...il.com
Subject: [PATCH v2 3/3] KSM: Add config to control mark_new_vma

Allowing to control mark_new_vma default value
Allowing work ksm on early allocated vmas

Signed-off-by: Timofey Titovets <nefelim4ag@...il.com>
---
 mm/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 1d1ae6b..90f40a6 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -340,6 +340,13 @@ config KSM
 	  until a program has madvised that an area is MADV_MERGEABLE, and
 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
 
+config KSM_MARK_NEW_VMA
+	int "Marking new vma pages as VM_MERGEABLE"
+	depends on KSM
+	default 0
+	range 0 1
+	help
+
 config DEFAULT_MMAP_MIN_ADDR
         int "Low address space to protect from user allocation"
 	depends on MMU
-- 
2.1.3

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