Stable Archive on lore.kernel.org
 help / color / Atom feed
From: akpm@linux-foundation.org
To: chanho.min@lge.com, jjinsuk.choi@lge.com, minchan@kernel.org,
	mm-commits@vger.kernel.org, sergey.senozhatsky@gmail.com,
	stable@vger.kernel.org
Subject: + mm-zsmallocc-fix-the-migrated-zspage-statistics.patch added to -mm tree
Date: Wed, 04 Dec 2019 14:58:58 -0800
Message-ID: <20191204225858.BGHJTiBbn%akpm@linux-foundation.org> (raw)


The patch titled
     Subject: mm/zsmalloc.c: fix the migrated zspage statistics.
has been added to the -mm tree.  Its filename is
     mm-zsmallocc-fix-the-migrated-zspage-statistics.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-zsmallocc-fix-the-migrated-zspage-statistics.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-zsmallocc-fix-the-migrated-zspage-statistics.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Chanho Min <chanho.min@lge.com>
Subject: mm/zsmalloc.c: fix the migrated zspage statistics.

When zspage is migrated to the other zone, the zone page state should be
updated as well, otherwise the NR_ZSPAGE for each zone shows wrong counts
including proc/zoneinfo in practice.

Link: http://lkml.kernel.org/r/1575434841-48009-1-git-send-email-chanho.min@lge.com
Fixes: 91537fee0013 ("mm: add NR_ZSMALLOC to vmstat")
Signed-off-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Jinsuk Choi <jjinsuk.choi@lge.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: <stable@vger.kernel.org>        [4.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/zsmalloc.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/mm/zsmalloc.c~mm-zsmallocc-fix-the-migrated-zspage-statistics
+++ a/mm/zsmalloc.c
@@ -2069,6 +2069,11 @@ static int zs_page_migrate(struct addres
 		zs_pool_dec_isolated(pool);
 	}
 
+	if (page_zone(newpage) != page_zone(page)) {
+		dec_zone_page_state(page, NR_ZSPAGES);
+		inc_zone_page_state(newpage, NR_ZSPAGES);
+	}
+
 	reset_page(page);
 	put_page(page);
 	page = newpage;
_

Patches currently in -mm which might be from chanho.min@lge.com are

mm-zsmallocc-fix-the-migrated-zspage-statistics.patch


                 reply index

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191204225858.BGHJTiBbn%akpm@linux-foundation.org \
    --to=akpm@linux-foundation.org \
    --cc=chanho.min@lge.com \
    --cc=jjinsuk.choi@lge.com \
    --cc=minchan@kernel.org \
    --cc=mm-commits@vger.kernel.org \
    --cc=sergey.senozhatsky@gmail.com \
    --cc=stable@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Stable Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/stable/0 stable/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 stable stable/ https://lore.kernel.org/stable \
		stable@vger.kernel.org
	public-inbox-index stable

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.stable


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git