Re: [RFC PATCH 0/3] ns, procfs: pid conversion between ns and showing pidns hierarchy

["Serge E. Hallyn" <serge@hallyn.com>]

Quoting Chen Hanxiao (chenhanxiao@cn.fujitsu.com):
> This series will expose pid inside containers
> via procfs.
> Also show the hierarchy of pid namespcae.
> Then we could know how pid looks inside a container
> and their ns relationships.
> 
> Chen Hanxiao (3):
>   procfs: check uniq proc_dir_entry subdir name
>   procfs: show hierarchy of pid namespace
>   /proc/pid/status: show all sets of pid according to ns
> 
>  fs/proc/Kconfig           |   6 ++
>  fs/proc/Makefile          |   1 +
>  fs/proc/array.c           |  17 +++++
>  fs/proc/generic.c         |  15 +++++
>  fs/proc/pidns_hierarchy.c | 161 ++++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/proc_fs.h   |   3 +
>  6 files changed, 203 insertions(+)
>  create mode 100644 fs/proc/pidns_hierarchy.c

Thanks, Chen.  I'm sorry I won't have a chance to review this week, but
hope to do next week.