linux-kernel - Re: [PATCH 5/9] mm: memcontrol: convert NR_FILE

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Date:   Sat, 5 Dec 2020 15:10:48 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     rafael@...nel.org, adobriyan@...il.com, akpm@...ux-foundation.org,
        hannes@...xchg.org, mhocko@...nel.org, vdavydov.dev@...il.com,
        hughd@...gle.com, will@...nel.org, guro@...com, rppt@...nel.org,
        tglx@...utronix.de, esyr@...hat.com, peterx@...hat.com,
        krisman@...labora.com, surenb@...gle.com, avagin@...nvz.org,
        elver@...gle.com, rdunlap@...radead.org, iamjoonsoo.kim@....com,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, cgroups@...r.kernel.org
Subject: Re: [PATCH 5/9] mm: memcontrol: convert NR_FILE_THPS account to pages

On Sat, Dec 05, 2020 at 09:02:20PM +0800, Muchun Song wrote:
> Converrt NR_FILE_THPS account to pages.
> 
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> ---
>  drivers/base/node.c | 3 +--
>  fs/proc/meminfo.c   | 2 +-
>  mm/filemap.c        | 2 +-
>  mm/huge_memory.c    | 3 ++-
>  mm/khugepaged.c     | 2 +-
>  mm/memcontrol.c     | 5 ++---
>  6 files changed, 8 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/base/node.c b/drivers/base/node.c
> index 05c369e93e16..f6a9521bbcf8 100644
> --- a/drivers/base/node.c
> +++ b/drivers/base/node.c
> @@ -466,8 +466,7 @@ static ssize_t node_read_meminfo(struct device *dev,
>  				    HPAGE_PMD_NR),
>  			     nid, K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED) *
>  				    HPAGE_PMD_NR),
> -			     nid, K(node_page_state(pgdat, NR_FILE_THPS) *
> -				    HPAGE_PMD_NR),
> +			     nid, K(node_page_state(pgdat, NR_FILE_THPS)),

Again, is this changing a user-visable value?