Add DEVPTS_MULTIPLE_INSTANCES config token
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -443,6 +443,17 @@ config UNIX98_PTYS
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All modern Linux systems use the Unix98 ptys. Say Y unless
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you're on an embedded system and want to conserve memory.
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config DEVPTS_MULTIPLE_INSTANCES
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bool "Support multiple instances of devpts"
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depends on UNIX98_PTYS
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default n
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---help---
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Enable support for multiple instances of devpts filesystem.
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If you want to have isolated PTY namespaces (eg: in containers),
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say Y here. Otherwise, say N. If enabled, each mount of devpts
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filesystem with the '-o newinstance' option will create an
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independent PTY namespace.
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config LEGACY_PTYS
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bool "Legacy (BSD) PTY support"
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default y
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