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Add DEVPTS_MULTIPLE_INSTANCES config token

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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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Sukadev Bhattiprolu 2009-01-02 13:41:54 +00:00 committed by Linus Torvalds
parent 53af8ee409
commit e4adca27bc
1 changed files with 11 additions and 0 deletions
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11
drivers/char/Kconfig
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@ -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