From: gorcunov@openvz.org (Cyrill Gorcunov)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch 1/2] kcmp: Make it to depend on CONFIG_KCMP
Date: Tue, 19 Feb 2013 13:31:54 +0400 [thread overview]
Message-ID: <20130219093154.GF20312@moon> (raw)
In-Reply-To: <5123444D.6000806@suse.cz>
On Tue, Feb 19, 2013 at 10:22:21AM +0100, Michal Marek wrote:
> On 19.2.2013 07:48, Cyrill Gorcunov wrote:
> > --- linux-2.6.git.orig/init/Kconfig
> > +++ linux-2.6.git/init/Kconfig
> > @@ -279,6 +279,15 @@ config FHANDLE
> > get renamed. Enables open_by_handle_at(2) and name_to_handle_at(2)
> > syscalls.
> >
> > +config KCMP
> > + bool "kcmp syscall"
> > + default n
>
> Previously, kcmp was enabled with CONFIG_CHECKPOINT_RESTORE. Maybe
> change it to 'default CHECKPOINT_RESTORE', so that make oldconfig does
> the right thing?
Yes, thanks, good point! I've been adviced that make it obj-y by default
may be a good option as well, not sure.
---
From: Cyrill Gorcunov <gorcunov@openvz.org>
Subject: kcmp: Make it to depend on CONFIG_KCMP
Since kcmp syscall has been implemented (initially on
x86 architecture) a number of other archs wire it up
as well: xtensa, sparc, sh, s390, mips, microblaze,
m68k (not taking into account those who uses
<asm-generic/unistd.h> for syscall numbers
definitions).
But the Makefile, which turns kcmp.o generation on
still depends on former config-x86. Thus get rid
of this limitation and make kcmp.o depend on CONFIG_KCMP
option.
v2:
- As Michal pointed the old configs might already use of
CHECKPOINT_RESTORE, so make "default" accordingly.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Valdis.Kletnieks at vt.edu
Cc: Michal Marek <mmarek@suse.cz>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
init/Kconfig | 9 +++++++++
kernel/Makefile | 4 +---
2 files changed, 10 insertions(+), 3 deletions(-)
Index: linux-2.6.git/init/Kconfig
===================================================================
--- linux-2.6.git.orig/init/Kconfig
+++ linux-2.6.git/init/Kconfig
@@ -279,6 +279,15 @@ config FHANDLE
get renamed. Enables open_by_handle_at(2) and name_to_handle_at(2)
syscalls.
+config KCMP
+ bool "kcmp syscall"
+ default CHECKPOINT_RESTORE
+ help
+ If you say Y here, a user level program will be able to use
+ kcmp(2) syscall.
+
+ If unsure, say N.
+
config AUDIT
bool "Auditing support"
depends on NET
Index: linux-2.6.git/kernel/Makefile
===================================================================
--- linux-2.6.git.orig/kernel/Makefile
+++ linux-2.6.git/kernel/Makefile
@@ -25,9 +25,7 @@ endif
obj-y += sched/
obj-y += power/
-ifeq ($(CONFIG_CHECKPOINT_RESTORE),y)
-obj-$(CONFIG_X86) += kcmp.o
-endif
+obj-$(CONFIG_KCMP) += kcmp.o
obj-$(CONFIG_FREEZER) += freezer.o
obj-$(CONFIG_PROFILING) += profile.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
next prev parent reply other threads:[~2013-02-19 9:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-19 6:48 [patch 0/2] make kcmp own config entry Cyrill Gorcunov
2013-02-19 6:48 ` [patch 1/2] kcmp: Make it to depend on CONFIG_KCMP Cyrill Gorcunov
2013-02-19 8:47 ` KOSAKI Motohiro
2013-02-19 9:22 ` Michal Marek
2013-02-19 9:31 ` Cyrill Gorcunov [this message]
2013-02-19 17:53 ` H. Peter Anvin
2013-02-19 18:28 ` Cyrill Gorcunov
2013-02-19 21:42 ` Andrew Morton
2013-02-19 21:48 ` H. Peter Anvin
2013-02-19 22:02 ` Cyrill Gorcunov
2013-02-19 21:54 ` Cyrill Gorcunov
2013-02-19 22:00 ` Andrew Morton
2013-02-19 22:11 ` Cyrill Gorcunov
2013-02-19 22:15 ` Cyrill Gorcunov
2013-02-19 22:32 ` Cyrill Gorcunov
2013-02-19 23:41 ` H. Peter Anvin
2013-02-19 6:48 ` [patch 2/2] arm: Wire up kcmp syscall Cyrill Gorcunov
2013-02-19 7:07 ` Cyrill Gorcunov
2013-02-20 7:56 ` Cyrill Gorcunov
2013-02-20 23:17 ` Andrew Morton
2013-02-21 5:43 ` Cyrill Gorcunov
2013-02-23 22:31 ` Arnd Bergmann
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