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| author | Cyrill Gorcunov <gorcunov@openvz.org> | 2012-01-12 17:20:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 20:13:12 -0800 |
| commit | 067bce1a06c1f84146f873a598cd7c3a28eee1d5 (patch) | |
| tree | 91b4a7e52e1ed8136ea80f7c1d0cc437f93e3d30 /init | |
| parent | 85bbddc37b2bf947a577d572b1c4c23bf829217f (diff) | |
| download | lwn-067bce1a06c1f84146f873a598cd7c3a28eee1d5.tar.gz lwn-067bce1a06c1f84146f873a598cd7c3a28eee1d5.zip | |
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 <gorcunov@openvz.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Vagin <avagin@openvz.org>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 11 |
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 |