On Sun, Oct 03, 2010 at 11:57:58PM -0700, Greg Thelen wrote:
> Replace usage of the mem_cgroup_update_file_mapped() memcg
> statistic update routine with two new routines:
> * mem_cgroup_inc_page_stat()
> * mem_cgroup_dec_page_stat()
>
> As before, only the file_mapped statistic is managed. However,
> these more general interfaces allow for new statistics to be
> more easily added. New statistics are added with memcg dirty
> page accounting.
>
> Signed-off-by: Greg Thelen <gthe...@google.com>
> Signed-off-by: Andrea Righi <ari...@develer.com>
> ---
> include/linux/memcontrol.h | 31 ++++++++++++++++++++++++++++---
> mm/memcontrol.c | 17 ++++++++---------
> mm/rmap.c | 4 ++--
> 3 files changed, 38 insertions(+), 14 deletions(-)
>
> diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
> index 159a076..7c7bec4 100644
> --- a/include/linux/memcontrol.h
> +++ b/include/linux/memcontrol.h
> @@ -25,6 +25,11 @@ struct page_cgroup;
> struct page;
> struct mm_struct;
>
> +/* Stats that can be updated by kernel. */
> +enum mem_cgroup_write_page_stat_item {
> + MEMCG_NR_FILE_MAPPED, /* # of pages charged as file rss */
> +};
> +
mem_cgrou_"write"_page_stat_item?
Does "write" make sense to abstract page_state generally?
--
Kind regards,
Minchan Kim
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