On 07/07/2020 22:11, Randy Dunlap wrote:

Hi--

On 7/7/20 11:09 AM, Mickaël Salaün wrote:

quoted

---
 arch/Kconfig                  |   7 +
 arch/um/Kconfig               |   1 +
 include/uapi/linux/landlock.h |  78 +++++
 security/landlock/Kconfig     |   2 +-
 security/landlock/Makefile    |   2 +-
 security/landlock/fs.c        | 609 ++++++++++++++++++++++++++++++++++
 security/landlock/fs.h        |  60 ++++
 security/landlock/setup.c     |   7 +
 security/landlock/setup.h     |   2 +
 9 files changed, 766 insertions(+), 2 deletions(-)
 create mode 100644 include/uapi/linux/landlock.h
 create mode 100644 security/landlock/fs.c
 create mode 100644 security/landlock/fs.h

diff --git a/arch/Kconfig b/arch/Kconfig
index 8cc35dc556c7..483b7476ac69 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig

@@ -845,6 +845,13 @@ config COMPAT_32BIT_TIME
 config ARCH_NO_PREEMPT
 	bool
 
+config ARCH_EPHEMERAL_STATES
+	def_bool n
+	help
+	  An arch should select this symbol if it do not keep an internal kernel

	                                       it does not

quoted

+	  state for kernel objects such as inodes, but instead rely on something

	                                               instead relies on

quoted

+	  else (e.g. the host kernel for an UML kernel).
+
 config ARCH_SUPPORTS_RT
 	bool
 

thanks.

Thanks Randy!