On Tue, 26 Jan 2016 15:55:29 -0500 Johannes Weiner <hannes@xxxxxxxxxxx> wrote:
> MEM_CGROUP_STAT_NSTATS is just a delimiter for cgroup1 statistics, not
> an actual array entry. Reuse it for the first cgroup2 stat entry, like
> in the event array.
>
> ...
>
> --- a/include/linux/memcontrol.h
> +++ b/include/linux/memcontrol.h
> @@ -51,7 +51,7 @@ enum mem_cgroup_stat_index {
> MEM_CGROUP_STAT_SWAP, /* # of pages, swapped out */
> MEM_CGROUP_STAT_NSTATS,
> /* default hierarchy stats */
> - MEMCG_SOCK,
> + MEMCG_SOCK = MEM_CGROUP_STAT_NSTATS,
> MEMCG_NR_STAT,
> };
The code looks a bit odd. How come mem_cgroup_stat_names[] ends with
"swap"? Should MEMCG_SOCK be in there at all?
And the naming is a bit sad. "MEM_CGROUP_STAT_FILE_MAPPED" maps to
"mapped_file", not "file_mapped".
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