[PATCH 0/6] cgroup: add isolation_root flag, poor man's namespaces for cgroups

From: Witold Krecicki
Date: Fri Sep 30 2011 - 08:05:58 EST


This patchset adds namespace-like feature to the existing cgroup system.
When used with a container system (eg. lxc) it allows containers to have
its own cgroup hierarchy, enabling use of 'systemd' (using cgroups) inside
a container.

The behaviour is not changed at all when isolation_root flag is not set,
no additional overhead is added.

I'm really not sure if the 'mount' part (patch 5) is done correctly, please
review carefully.

Witold Krecicki (6):
cgroup: add cgroup.isolation_root flag entry to the cgroup filesystem
cgroup: make 'cgroup_is_descendant' function take cgroup as a
'descendant of' argument
cgroup: add 'root' parameter to cgroup_path function
cgroup: disallow task from leaving cgroup isolated root
cgroup: make cgroup filesystem mounts performed by task inside
isolation root see its isolation root as top cgroup
cgroup: documentation of isolation_root cgroup flag

Documentation/cgroups/cgroups.txt | 20 +++++++-
block/blk-cgroup.c | 2 +-
include/linux/cgroup.h | 12 +++-
kernel/cgroup.c | 102 +++++++++++++++++++++++++++++++-----
kernel/cpuset.c | 2 +-
kernel/sched_debug.c | 2 +-
mm/memcontrol.c | 6 +-
7 files changed, 120 insertions(+), 26 deletions(-)

--
1.7.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/