[RESEND][PATCH v2 0/2] ns, procfs: pid conversion between ns and showing pidns hierarchy

[Chen Hanxiao]

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.

v2: use a procfs text file instead of dirs
    to show the hierarchy of pid namespace


Chen Hanxiao (2):
  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/pidns_hierarchy.c | 195 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 219 insertions(+)
 create mode 100644 fs/proc/pidns_hierarchy.c

-- 
1.9.0

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