This patchset adds support for IPC shared-memory and message queues.
It applies on top of c/r v14. Tested on x86_32 and verified with the
tests provided in the userspace tools.
Changelog:
[2009-Apr-07] [v2]
- Reorder paches
- Rename 'cr_workqueue' -> 'cr_deferqueue'
- Add c/r of sysvipc message queues
- Integrate with recent naemspaces c/r (rebase on ckpt-v14)
Summary:
Oren Laadan (10):
Infrastructure for work postponed to the end of checkpoint/restart
ipc: allow allocation of an ipc object with desired identifier
ipc: helpers to save and restore kern_ipc_perm structures
sysvipc-shm: checkpoint
sysvipc-shm: restart
sysvipc-shm: export interface from ipc/shm.c to delete ipc shm
sysvipc-shm: correctly handle deleted (active) ipc shared memory
sysvipc-msg: make 'struct msg_msgseg' visible in ipc/util.h
sysvipc-msq: checkpoint
sysvipc-msq: restart
checkpoint/Makefile | 5 +-
checkpoint/checkpoint.c | 4 +
checkpoint/ckpt_mem.c | 9 +
checkpoint/ckpt_task.c | 2 +-
checkpoint/deferqueue.c | 62 ++++++
checkpoint/restart.c | 5 +
checkpoint/rstr_file.c | 1 -
checkpoint/rstr_mem.c | 23 +++
checkpoint/rstr_task.c | 2 +-
checkpoint/sys.c | 7 +
checkpoint/util_ipc.c | 95 +++++++++
include/linux/checkpoint.h | 28 +++
include/linux/checkpoint_hdr.h | 65 +++++++
include/linux/shm.h | 4 +
ipc/Makefile | 1 +
ipc/ckpt_msg.c | 414 ++++++++++++++++++++++++++++++++++++++++
ipc/ckpt_shm.c | 339 ++++++++++++++++++++++++++++++++
ipc/msg.c | 20 ++-
ipc/msgutil.c | 8 -
ipc/sem.c | 17 ++-
ipc/shm.c | 34 +++-
ipc/util.c | 42 +++--
ipc/util.h | 20 ++-
23 files changed, 1158 insertions(+), 49 deletions(-)
create mode 100644 checkpoint/deferqueue.c
create mode 100644 checkpoint/util_ipc.c
create mode 100644 ipc/ckpt_msg.c
create mode 100644 ipc/ckpt_shm.c
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