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    Subject[PATCHv3 0/2] ns, procfs: pid conversion between ns and showing pidns hierarchy
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    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.

    v3: fix a race issue and memory leak issue
    in pidns_hierarchy.
    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 | 227 ++++++++++++++++++++++++++++++++++++++++++++++
    4 files changed, 251 insertions(+)
    create mode 100644 fs/proc/pidns_hierarchy.c

    --
    1.9.0



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