[CRIU] [PATCHv0 0/3] Support C/R of frozen cgroup

[Andrey Wagin]

2015-11-24 16:34 GMT+03:00 Eugene Batalov <eabatalov89 at gmail.com>:
> Hello. This patchset implements c/r of ps tree
> that was frozen using freezer controller before start of
> ps tree dumping.
> Such ps tree will be frozen after restore.

Hi,

Thank you for the patches. They look good at first glance. I will
review them more carefully tomorrow.

I want to suggest to add the --leave-frozen options to freeze
processes after restoring even if  they were not frozen before.

> This means that we can c/r paused Docker containers.
> See details in issue #20 on github:
> https://github.com/xemul/criu/issues/20
>
> We'll send patch with autotest for this feature later.
>
> From user point of view we extend functionality of --freeze-cgroup
> option so CRIU documentation and help message for --freeze-cgroup
> option may need some improvement/clarification.
>
> Evgeniy Akimov (3):
>   cgroups: save freezer state during dump
>   restore: split finalize_restore into two stages
>   restore: restore freezer cgroup state
>
>  cgroup.c              | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  cr-restore.c          | 37 +++++++++++++++++++-----------
>  include/cgroup.h      |  1 +
>  include/seize.h       |  1 +
>  protobuf/cgroup.proto |  1 +
>  seize.c               |  5 ++++
>  6 files changed, 95 insertions(+), 13 deletions(-)
>
> --
> 1.9.1
>
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