From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA5C1C32771 for ; Sat, 4 Jan 2020 20:59:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AEE9F24653 for ; Sat, 4 Jan 2020 20:59:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="I0Hh+tJh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AEE9F24653 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4994E8E0006; Sat, 4 Jan 2020 15:59:39 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 448918E0003; Sat, 4 Jan 2020 15:59:39 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3AD1E8E0006; Sat, 4 Jan 2020 15:59:39 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0212.hostedemail.com [216.40.44.212]) by kanga.kvack.org (Postfix) with ESMTP id 2A62E8E0003 for ; Sat, 4 Jan 2020 15:59:39 -0500 (EST) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id C4FD4180AD804 for ; Sat, 4 Jan 2020 20:59:38 +0000 (UTC) X-FDA: 76341168036.30.sheet21_542d8f9f4d750 X-HE-Tag: sheet21_542d8f9f4d750 X-Filterd-Recvd-Size: 2535 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Sat, 4 Jan 2020 20:59:38 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3636824654; Sat, 4 Jan 2020 20:59:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578171577; bh=HuPWhhHrqeSWiUh121GEnd8YYpBsCHJV6q9ZOlF5gqI=; h=Date:From:To:Subject:From; b=I0Hh+tJhU3x3XdeoiQDMD4PF6NJzu/VzscqM5bvQTtml7ryeAGycUcc6l2LFUYCGW MmdI2r6wip6dQ1DAvz91ely/3TPQ7KkiNzf0KyNfK28rleZfNFDrz5iSu/AK/AfDN8 Fg7I2zSRyCDwecmTHgsVvsXClx0L5SAupxomena4= Date: Sat, 04 Jan 2020 12:59:36 -0800 From: akpm@linux-foundation.org To: akpm@linux-foundation.org, chanho.min@lge.com, jjinsuk.choi@lge.com, linux-mm@kvack.org, minchan@kernel.org, mm-commits@vger.kernel.org, sergey.senozhatsky@gmail.com, stable@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 02/17] mm/zsmalloc.c: fix the migrated zspage statistics. Message-ID: <20200104205936.KQJRwCAg-%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Chanho Min 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 Signed-off-by: Jinsuk Choi Reviewed-by: Sergey Senozhatsky Acked-by: Minchan Kim Cc: [4.9+] Signed-off-by: Andrew Morton --- 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; _