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authorCyrill Gorcunov <[email protected]>2012-01-12 17:20:49 -0800
committerLinus Torvalds <[email protected]>2012-01-12 20:13:12 -0800
commit067bce1a06c1f84146f873a598cd7c3a28eee1d5 (patch)
tree91b4a7e52e1ed8136ea80f7c1d0cc437f93e3d30
parent85bbddc37b2bf947a577d572b1c4c23bf829217f (diff)
c/r: introduce CHECKPOINT_RESTORE symbol
For checkpoint/restore we need auxilary features being compiled into the kernel, such as additional prctl codes, /proc/<pid>/map_files and etc... but same time these features are not mandatory for a regular kernel so CHECKPOINT_RESTORE config symbol should bring a way to disable them all at once if one wish to get rid of additional functionality. Signed-off-by: Cyrill Gorcunov <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Andrew Vagin <[email protected]> Cc: Serge Hallyn <[email protected]> Cc: Vasiliy Kulikov <[email protected]> Reviewed-by: Kees Cook <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Alexey Dobriyan <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--init/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 018d206c21f7..6ac2236244c3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -783,6 +783,17 @@ config DEBUG_BLK_CGROUP
endif # CGROUPS
+config CHECKPOINT_RESTORE
+ bool "Checkpoint/restore support" if EXPERT
+ default n
+ help
+ Enables additional kernel features in a sake of checkpoint/restore.
+ In particular it adds auxiliary prctl codes to setup process text,
+ data and heap segment sizes, and a few additional /proc filesystem
+ entries.
+
+ If unsure, say N here.
+
menuconfig NAMESPACES
bool "Namespaces support" if EXPERT
default !EXPERT