[CRIU] Re: [PATCH 0/5] IPC: checkpoint/restore in userspace enhancements

Casey Schaufler casey at schaufler-ca.com
Fri Feb 10 13:29:26 EST 2012


On 2/9/2012 10:01 AM, Stanislav Kinsbursky wrote:
> This patch set aimed to provide additional functionality for all IPC objects,
> which is required for migration these objects by user-space checkpoint/restore
> utils.
> The main problem here was impossibility to set up object id. This patch set
> solves the problem in two steps:
> 1) Makes it possible to create new object (shared memory, semaphores set or
> messages queue) with ID, equal to passed key.
> 2) Makes it possible to change existent object key.

Is there any chance you might include the LSM data as well?

>
> The following series consists of:
>
> ---
>
> Stanislav Kinsbursky (5):
>        ipc: "use key as id" functionality for resource get system call introduced
>        ipc: segment key change helper introduced
>        ipc: add new SHM_SET command for sys_shmctl() call
>        ipc: add new MSG_SET command for sys_msgctl() call
>        ipc: add new SEM_SET command for sys_semctl() call
>
>
>   include/linux/ipc.h        |    1 +
>   include/linux/msg.h        |    1 +
>   include/linux/sem.h        |    1 +
>   include/linux/shm.h        |    1 +
>   ipc/compat.c               |    9 +++++++
>   ipc/msg.c                  |   14 +++++++++-
>   ipc/sem.c                  |   11 +++++++-
>   ipc/shm.c                  |   14 +++++++++-
>   ipc/util.c                 |   59 +++++++++++++++++++++++++++++++++++++++++---
>   ipc/util.h                 |    3 ++
>   security/selinux/hooks.c   |    3 ++
>   security/smack/smack_lsm.c |    3 ++
>   12 files changed, 110 insertions(+), 10 deletions(-)
>
> --
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