Creating cgroup hierearchies of an unreasonable size can affect
system performance. A user might want to limit the size
of the cgroup hierarchy.
This patchset implements an ability to control and monitor cgroup
hierarchy size.
Patch 1 implements tracking of live and dying descendant cgroups
on each cgroup level.
Patch 2 adds cgroup.max.descendants and cgroup.max.depth interfaces
to set up hierarchy limits.
Patch 3 adds cgroup.stat interface with simple hierarchy stats.
Patch 4 is a trivial cleanup.
Roman Gushchin (4):
cgroup: keep track of number of descent cgroups
cgroup: implement hierarchy limits
cgroup: add cgroup.stat interface with basic hierarchy stats
cgroup: re-use the parent pointer in cgroup_destroy_locked()
Documentation/cgroup-v2.txt | 32 +++++++++
include/linux/cgroup-defs.h | 13 ++++
kernel/cgroup/cgroup.c | 163 +++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 205 insertions(+), 3 deletions(-)
--
2.13.3
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