Re: [PATCH -mm 10/21] mm, THP, swap: Support to count THP swapin and its fallback

[Randy Dunlap]

On 04/16/18 19:02, Huang, Ying wrote:
> From: Huang Ying <ying.huang@xxxxxxxxx>
> 
> 2 new /proc/vmstat fields are added, "thp_swapin" and
> "thp_swapin_fallback" to count swapin a THP from swap device as a
> whole and fallback to normal page swapin.
> 
> Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
> Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> Cc: Michal Hocko <mhocko@xxxxxxxx>
> Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
> Cc: Shaohua Li <shli@xxxxxxxxxx>
> Cc: Hugh Dickins <hughd@xxxxxxxxxx>
> Cc: Minchan Kim <minchan@xxxxxxxxxx>
> Cc: Rik van Riel <riel@xxxxxxxxxx>
> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> Cc: Zi Yan <zi.yan@xxxxxxxxxxxxxx>
> ---
>  include/linux/vm_event_item.h |  2 ++
>  mm/huge_memory.c              |  4 +++-
>  mm/page_io.c                  | 15 ++++++++++++---
>  mm/vmstat.c                   |  2 ++
>  4 files changed, 19 insertions(+), 4 deletions(-)
> 

Hi,
Please also update Documentation/vm/transhuge.rst.

Thanks.

-- 
~Randy