[CRIU] [PATCH cr] crtools: link pstree_item-s in a tree

[Andrey Vagin]

because they describes a process TREE.

It's usefull, when we dump tasks from another pid namespace,
because a real pid is got from parasite. In previous version
we need to update pid in two places one is in a pstree_item and
one is in a children array.

A process tree will be necessery to restore sid and pgid,
because we should add fake tasks in a tree. For example if
a sesion leader is absent.

Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 cr-dump.c         |  234 ++++++++++++++++++++++++++++++++--------------------
 cr-restore.c      |   99 +++++++++++-----------
 cr-show.c         |   21 ++----
 include/crtools.h |    9 +-
 include/image.h   |    2 +-
 5 files changed, 206 insertions(+), 159 deletions(-)

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