Messages in this thread |  | | | Date | Wed, 04 Jun 2008 14:42:21 +0800 | | From | Li Zefan <> | | Subject | Re: [RFC][PATCH 2/2] memcg: hardwall hierarhcy for memcg | |
KAMEZAWA Hiroyuki wrote:
> Hard-Wall hierarchy support for memcg.
> - new member hierarchy_model is added to memcg.
>
> Only root cgroup can modify this only when there is no children.
>
> Adds following functions for supporting HARDWALL hierarchy.
> - try to reclaim memory at the change of "limit".
> - try to reclaim all memory at force_empty
> - returns resources to the parent at destroy.
>
> Changelog v2->v3
> - added documentation.
> - hierarhcy_model parameter is added.
>
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> ---
> Documentation/controllers/memory.txt | 27 +++++-
> mm/memcontrol.c | 156 ++++++++++++++++++++++++++++++++++-
> 2 files changed, 178 insertions(+), 5 deletions(-)
>
> Index: temp-2.6.26-rc2-mm1/mm/memcontrol.c
> ===================================================================
> --- temp-2.6.26-rc2-mm1.orig/mm/memcontrol.c
> +++ temp-2.6.26-rc2-mm1/mm/memcontrol.c
> @@ -137,6 +137,8 @@ struct mem_cgroup {
> struct mem_cgroup_lru_info info;
>
> int prev_priority; /* for recording reclaim priority */
> +
> + int hierarchy_model; /* used hierarchical policy */
hierarchy_model can be a global value instead of per cgroup value.
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