Re: [RFC][PATCH 5/11] memcg: account move and change force_empty

[Randy Dunlap <randy.dunlap@oracle.com>]

On Thu, 23 Oct 2008 18:05:38 +0900 KAMEZAWA Hiroyuki wrote:

>  Documentation/controllers/memory.txt |   12 -
>  mm/memcontrol.c                      |  277 ++++++++++++++++++++++++++---------
>  2 files changed, 214 insertions(+), 75 deletions(-)
> 
> Index: mmotm-2.6.27+/mm/memcontrol.c
> ===================================================================
> --- mmotm-2.6.27+.orig/mm/memcontrol.c
> +++ mmotm-2.6.27+/mm/memcontrol.c
> @@ -538,6 +533,25 @@ nomem:
>  	return -ENOMEM;
>  }
>  
> +/**
> + * mem_cgroup_try_charge - get charge of PAGE_SIZE.
> + * @mm: an mm_struct which is charged against. (when *memcg is NULL)
> + * @gfp_mask: gfp_mask for reclaim.
> + * @memcg: a pointer to memory cgroup which is charged against.
> + *
> + * charge aginst memory cgroup pointed by *memcg. if *memcg == NULL, estimated
> + * memory cgroup from @mm is got and stored in *memcg.
> + *
> + * Retruns 0 if success. -ENOMEM at failure.

      Returns

> + * This call can invoce OOM-Killer.

                    invoke

> + */

---
~Randy

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