Re: [mmotm][PATCH] coalescing uncharge

[KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>]

On Wed, 2 Sep 2009 13:41:14 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:

>  #ifdef CONFIG_SWAP
>  /*
>   * called after __delete_from_swap_cache() and drop "page" account.
> Index: mmotm-2.6.31-Aug27/include/linux/sched.h
> ===================================================================
> --- mmotm-2.6.31-Aug27.orig/include/linux/sched.h
> +++ mmotm-2.6.31-Aug27/include/linux/sched.h
> @@ -1540,6 +1540,13 @@ struct task_struct {
>  	unsigned long trace_recursion;
>  #endif /* CONFIG_TRACING */
>  	unsigned long stack_start;
> +#ifdef CONFIG_CGROUP_MEM_RES_CTLR /* memcg uses this to do batch job */
> +	struct memcg_batch_info {
> +		bool do_batch;
> +		struct mem_cgroup *memcg;
> +		long pages, memsw;
> +	} memcg_batch;
> +#endif
I wonder I should make this as a pointer
	struct memcg_batch_info *

and allocate this dynamically at attach. Hmm. maybe useful for other purpose
to track per-task memcg behavior.

Regards,
-Kmae

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