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authorAndrey Vagin <avagin@openvz.org>2016-09-06 00:47:15 -0700
committerEric W. Biederman <ebiederm@xmission.com>2016-09-22 19:59:41 -0500
commita7306ed8d94af729ecef8b6e37506a1c6fc14788 (patch)
tree0d45320911d2a339bc0abd6bacd5703c7308c08c /tools/testing/selftests/nsfs/Makefile
parentnsfs: add ioctl to get an owning user namespace for ns file descriptor (diff)
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nsfs: add ioctl to get a parent namespace
Pid and user namepaces are hierarchical. There is no way to discover parent-child relationships. In a future we will use this interface to dump and restore nested namespaces. Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Andrei Vagin <avagin@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
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