From: Cyrill Gorcunov <gorcunov@openvz.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Tejun Heo <tj@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andrew Vagin <avagin@openvz.org>,
Serge Hallyn <serge.hallyn@canonical.com>,
Vasiliy Kulikov <segoon@openwall.com>,
Kees Cook <keescook@chromium.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Cyrill Gorcunov <gorcunov@openvz.org>
Subject: [patch 1/3] Kconfig: Introduce CHECKPOINT_RESTORE symbol
Date: Tue, 13 Dec 2011 00:06:43 +0400 [thread overview]
Message-ID: <20111212201715.057471762@openvz.org> (raw)
In-Reply-To: 20111212200642.836001668@openvz.org
[-- Attachment #1: kconfig-add-checkpoint-restore --]
[-- Type: text/plain, Size: 1149 bytes --]
In a sake of 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>
---
init/Kconfig | 11 +++++++++++
1 file changed, 11 insertions(+)
Index: linux-2.6.git/init/Kconfig
===================================================================
--- linux-2.6.git.orig/init/Kconfig
+++ linux-2.6.git/init/Kconfig
@@ -773,6 +773,17 @@ 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
next prev parent reply other threads:[~2011-12-12 20:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 20:06 [patch 0/3] Patches in a sake of checkpoint/restore, procfs and prctls Cyrill Gorcunov
2011-12-12 20:06 ` Cyrill Gorcunov [this message]
2011-12-12 20:40 ` [patch 1/3] Kconfig: Introduce CHECKPOINT_RESTORE symbol Kees Cook
2011-12-12 20:06 ` [patch 2/3] [PATCH] fs, proc: Add start_data, end_data, start_brk members to /proc/$pid/stat v4 Cyrill Gorcunov
2011-12-12 20:06 ` [patch 3/3] [PATCH] prctl: Add PR_SET_MM codes to set up mm_struct entires v3 Cyrill Gorcunov
2011-12-12 20:38 ` Kees Cook
2011-12-12 20:51 ` Cyrill Gorcunov
2011-12-12 21:53 ` Andrew Morton
2011-12-12 22:01 ` Cyrill Gorcunov
2011-12-12 22:05 ` Cyrill Gorcunov
2011-12-12 21:49 ` KOSAKI Motohiro
2011-12-12 21:58 ` Cyrill Gorcunov
2011-12-12 22:24 ` KOSAKI Motohiro
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