Commit 067bce1a06c1f84146f873a598cd7c3a28eee1d5
Committed by
Linus Torvalds
1 parent
85bbddc37b
Exists in
master
and in
6 other branches
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>
Showing 1 changed file with 11 additions and 0 deletions Side-by-side Diff
init/Kconfig
... | ... | @@ -783,6 +783,17 @@ |
783 | 783 | |
784 | 784 | endif # CGROUPS |
785 | 785 | |
786 | +config CHECKPOINT_RESTORE | |
787 | + bool "Checkpoint/restore support" if EXPERT | |
788 | + default n | |
789 | + help | |
790 | + Enables additional kernel features in a sake of checkpoint/restore. | |
791 | + In particular it adds auxiliary prctl codes to setup process text, | |
792 | + data and heap segment sizes, and a few additional /proc filesystem | |
793 | + entries. | |
794 | + | |
795 | + If unsure, say N here. | |
796 | + | |
786 | 797 | menuconfig NAMESPACES |
787 | 798 | bool "Namespaces support" if EXPERT |
788 | 799 | default !EXPERT |