Re: [PATCH 1/9] Introduce trivial sys_checkpoint and sys_restore system calls

Cedric Le Goater
2008-09-03T11:44:20Z

Andrey Mirkin wrote:
> Right now they just return -ENOSYS. Later they will provide functionality
> to checkpoint and restart a container.
>
> Both syscalls take as arguments a file descriptor and flags.
> Also sys_checkpoint take as the first argument a PID of container's init
> (later it will be container ID); sys_restart takes as the first argument
> a container ID (right now it will not be used).
>
> Signed-off-by: Andrey Mirkin <major@openvz.org>
> ---
> Makefile | 2 +-
> arch/x86/kernel/syscall_table_32.S | 2 +
> cpt/Makefile | 1 +
> cpt/sys_core.c | 38 ++++++++++++++++++++++++++++++++++++
> include/asm-x86/unistd_32.h | 2 +
> 5 files changed, 44 insertions(+), 1 deletions(-)
> create mode 100644 cpt/Makefile
> create mode 100644 cpt/sys_core.c
>
> diff --git a/Makefile b/Makefile
> index ea413fa..1dee5c0 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -619,7 +619,7 @@ export mod_strip_cmd
>
>
> ifeq ($(KBUILD_EXTMOD),)
> -core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
> +core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ cpt/
>
> vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
> $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
> diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
> index fd9d4f4..4a0d7fb 100644
> --- a/arch/x86/kernel/syscall_table_32.S
> +++ b/arch/x86/kernel/syscall_table_32.S
> @@ -333,3 +333,5 @@ ENTRY(sys_call_table)
> .long sys_pipe2
> .long sys_inotify_init1
> .long sys_hijack
> + .long sys_checkpoint
> + .long sys_restart /* 335 */

this patchset is based on top of :

git://git.kernel.org/pub/scm/linux/kernel/git/daveh/linux-2.6-lxc.git

right ?

C.