>From 18a468a2f2db8f055bf62882d44d40764e924f3b Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Subject: [PATCH 5/9] Add DEVPTS_MULTIPLE_INSTANCES config token

Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
Acked-by: Serge Hallyn <[EMAIL PROTECTED]>
---
 drivers/char/Kconfig |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 700ff96..0d3ea89 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -443,6 +443,17 @@ config UNIX98_PTYS
          All modern Linux systems use the Unix98 ptys.  Say Y unless
          you're on an embedded system and want to conserve memory.
 
+config DEVPTS_MULTIPLE_INSTANCES
+       bool "Support multiple instances of devpts"
+       depends on UNIX98_PTYS
+       default n
+       ---help---
+         Enable support for multiple instances of devpts filesystem.
+         If you want to have isolated PTY namespaces (eg: in containers),
+         say Y here.  Otherwise, say N. If enabled, each mount of devpts
+         filesystem with the '-o newinstance' option will create an
+         independent PTY namespace.
+
 config LEGACY_PTYS
        bool "Legacy (BSD) PTY support"
        default y
-- 
1.5.2.5

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