From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Oren Laadan <orenl@cs.columbia.edu>
Cc: containers@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, Theodore Tso <tytso@mit.edu>,
"Serge E. Hallyn" <serue@us.ibm.com>,
Dave Hansen <dave@linux.vnet.ibm.com>
Subject: [RFC][PATCH 4/4] introduce sys_checkpoint and sys_restore
Date: Thu, 07 Aug 2008 15:40:38 -0700 [thread overview]
Message-ID: <20080807224038.0B03CEEF@kernel> (raw)
In-Reply-To: <20080807224033.FFB3A2C1@kernel>
From: Oren Laadan <orenl@cs.columbia.edu>
Create trivial sys_checkpoint and sys_restore system calls. They will
enable to checkpoint and restart an entire container, to and from a
checkpoint image file.
First create a template for both syscalls: they take a file descriptor
(for the image file) and flags as arguments. For sys_checkpoint the
first argument identifies the target container; for sys_restart it will
identify the checkpoint image.
Signed-off-by: Oren Laadan <orenl@cs.columbia.edu>
---
linux-2.6.git-dave/arch/x86/kernel/syscall_table_32.S | 2 ++
linux-2.6.git-dave/include/asm-x86/unistd_32.h | 2 ++
2 files changed, 4 insertions(+)
diff -puN arch/x86/kernel/syscall_table_32.S~introduce_sys_checkpoint_and_sys_restore arch/x86/kernel/syscall_table_32.S
--- linux-2.6.git/arch/x86/kernel/syscall_table_32.S~introduce_sys_checkpoint_and_sys_restore 2008-08-07 15:38:04.000000000 -0700
+++ linux-2.6.git-dave/arch/x86/kernel/syscall_table_32.S 2008-08-07 15:38:04.000000000 -0700
@@ -326,3 +326,5 @@ ENTRY(sys_call_table)
.long sys_fallocate
.long sys_timerfd_settime /* 325 */
.long sys_timerfd_gettime
+ .long sys_checkpoint
+ .long sys_restart
diff -puN include/asm-x86/unistd_32.h~introduce_sys_checkpoint_and_sys_restore include/asm-x86/unistd_32.h
--- linux-2.6.git/include/asm-x86/unistd_32.h~introduce_sys_checkpoint_and_sys_restore 2008-08-07 15:38:04.000000000 -0700
+++ linux-2.6.git-dave/include/asm-x86/unistd_32.h 2008-08-07 15:38:04.000000000 -0700
@@ -332,6 +332,8 @@
#define __NR_fallocate 324
#define __NR_timerfd_settime 325
#define __NR_timerfd_gettime 326
+#define __NR_checkpoint 327
+#define __NR_restart 328
#ifdef __KERNEL__
diff -puN Makefile~introduce_sys_checkpoint_and_sys_restore Makefile
_
next prev parent reply other threads:[~2008-08-07 22:42 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-07 22:40 [RFC][PATCH 0/4] kernel-based checkpoint restart Dave Hansen
2008-08-07 22:40 ` [RFC][PATCH 1/4] checkpoint-restart: general infrastructure Dave Hansen
2008-08-08 9:46 ` Arnd Bergmann
2008-08-08 18:50 ` Dave Hansen
2008-08-08 20:59 ` Oren Laadan
2008-08-08 22:17 ` Dave Hansen
2008-08-08 23:27 ` Oren Laadan
2008-08-08 22:23 ` Arnd Bergmann
2008-08-14 8:09 ` [Devel] " Pavel Emelyanov
2008-08-14 15:16 ` Dave Hansen
2008-08-08 22:13 ` Arnd Bergmann
2008-08-08 22:26 ` Dave Hansen
2008-08-08 22:39 ` Arnd Bergmann
2008-08-09 0:43 ` Dave Hansen
2008-08-09 6:37 ` Arnd Bergmann
2008-08-09 13:39 ` Dave Hansen
2008-08-11 15:07 ` Serge E. Hallyn
2008-08-11 15:25 ` Arnd Bergmann
2008-08-14 5:53 ` Pavel Machek
2008-08-14 15:12 ` Dave Hansen
2008-08-20 21:40 ` Oren Laadan
2008-08-11 15:22 ` Serge E. Hallyn
2008-08-11 16:53 ` Arnd Bergmann
2008-08-11 17:11 ` Dave Hansen
2008-08-11 19:48 ` checkpoint/restart ABI Dave Hansen
2008-08-11 21:47 ` Arnd Bergmann
2008-08-11 23:14 ` Jonathan Corbet
2008-08-11 23:23 ` Dave Hansen
2008-08-21 5:56 ` Oren Laadan
2008-08-21 8:43 ` Arnd Bergmann
2008-08-21 15:43 ` Oren Laadan
2008-08-11 21:54 ` Oren Laadan
2008-08-11 23:38 ` Jeremy Fitzhardinge
2008-08-11 23:54 ` Peter Chubb
2008-08-12 14:49 ` Serge E. Hallyn
2008-08-28 23:40 ` Eric W. Biederman
2008-08-12 15:11 ` Dave Hansen
2008-08-12 14:58 ` Dave Hansen
2008-08-12 16:32 ` Jeremy Fitzhardinge
2008-08-12 16:46 ` Dave Hansen
2008-08-12 17:04 ` Jeremy Fitzhardinge
2008-08-20 21:52 ` Oren Laadan
2008-08-20 21:54 ` Oren Laadan
2008-08-20 22:11 ` Dave Hansen
2008-08-11 18:03 ` [RFC][PATCH 1/4] checkpoint-restart: general infrastructure Jonathan Corbet
2008-08-11 18:38 ` Dave Hansen
2008-08-12 3:44 ` Oren Laadan
2008-08-18 9:26 ` [Devel] " Pavel Emelyanov
2008-08-20 19:10 ` Dave Hansen
2008-08-07 22:40 ` [RFC][PATCH 2/4] checkpoint/restart: x86 support Dave Hansen
2008-08-08 12:09 ` Arnd Bergmann
2008-08-08 20:28 ` Oren Laadan
2008-08-08 22:29 ` Arnd Bergmann
2008-08-08 23:04 ` Oren Laadan
2008-08-09 0:38 ` Dave Hansen
2008-08-09 1:20 ` Oren Laadan
2008-08-09 2:20 ` Dave Hansen
2008-08-09 2:35 ` Oren Laadan
2008-08-10 14:55 ` Jeremy Fitzhardinge
2008-08-11 15:36 ` Dave Hansen
2008-08-11 16:07 ` Jeremy Fitzhardinge
2008-08-09 6:43 ` Arnd Bergmann
2008-08-07 22:40 ` [RFC][PATCH 3/4] checkpoint/restart: memory management Dave Hansen
2008-08-08 12:12 ` Arnd Bergmann
2008-08-07 22:40 ` Dave Hansen [this message]
2008-08-08 12:15 ` [RFC][PATCH 4/4] introduce sys_checkpoint and sys_restore Arnd Bergmann
2008-08-08 20:33 ` Oren Laadan
2008-08-08 9:25 ` [RFC][PATCH 0/4] kernel-based checkpoint restart Arnd Bergmann
2008-08-08 18:06 ` Dave Hansen
2008-08-08 18:18 ` Arnd Bergmann
2008-08-08 19:44 ` Oren Laadan
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