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[209.85.220.65]) by mx.google.com with SMTPS id v10sor47391132plg.28.2019.07.22.02.54.59 for (Google Transport Security); Mon, 22 Jul 2019 02:54:59 -0700 (PDT) Received-SPF: pass (google.com: domain of laoar.shao@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=kYbzKJgn; spf=pass (google.com: domain of laoar.shao@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=laoar.shao@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=2E+0J/lCQjtD6kAw5emUWCAAdpJKdW3bqRjknXhHlt0=; b=kYbzKJgn980C35UD9pjoCrCx8MV7YiZipA4S+EwG9MErGHI6e09J6SS+0F0c1LoROX SFtSz9cmR06abWSjMeSaSsanizbN3CjVDvL4t8znM4TCVLBiSQlp4pBhyndPlUQEH8E/ iWCdzJxVZSAkfzImjBEorgBr3doHCBqBNbaWo3eoVrg/XmuGoWKh1oIEpGqQlhk0GIkk D4OQ5q/XZxHpmq7gXeLjpERzIdbM9UXYuCJqTeFte1CRzS+U5Vw6YVAEo5vUA6k4lL6/ Zc4NuACelKGKWG5os1nNeVeYShEEymalo0rUq9WpibICtvqiSgmq395JkI25z6KWNkUe xehw== X-Google-Smtp-Source: APXvYqw/a2rT2G3RxTytYx7iAa3C2ndRqX9b0wHDaQgy6r7wb3mCvb9SjyvGwwnUX5EbR0J4L+0O9Q== X-Received: by 2002:a17:902:694a:: with SMTP id k10mr73910519plt.255.1563789299284; Mon, 22 Jul 2019 02:54:59 -0700 (PDT) Received: from bogon.localdomain ([203.100.54.194]) by smtp.gmail.com with ESMTPSA id r6sm30314969pgl.74.2019.07.22.02.54.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Jul 2019 02:54:58 -0700 (PDT) From: Yafang Shao To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, Yafang Shao , David Rientjes , Vlastimil Babka , Yafang Shao Subject: [PATCH] mm/compaction: clear total_{migrate,free}_scanned before scanning a new zone Date: Mon, 22 Jul 2019 05:54:35 -0400 Message-Id: <1563789275-9639-1-git-send-email-laoar.shao@gmail.com> X-Mailer: git-send-email 1.8.3.1 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: total_{migrate,free}_scanned will be added to COMPACTMIGRATE_SCANNED and COMPACTFREE_SCANNED in compact_zone(). We should clear them before scanning a new zone. In the proc triggered compaction, we forgot clearing them. Fixes: 7f354a548d1c ("mm, compaction: add vmstats for kcompactd work") Signed-off-by: Yafang Shao Cc: David Rientjes Cc: Vlastimil Babka Cc: Yafang Shao --- mm/compaction.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index 9e1b9ac..a109b45 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2405,8 +2405,6 @@ static void compact_node(int nid) struct zone *zone; struct compact_control cc = { .order = -1, - .total_migrate_scanned = 0, - .total_free_scanned = 0, .mode = MIGRATE_SYNC, .ignore_skip_hint = true, .whole_zone = true, @@ -2422,6 +2420,8 @@ static void compact_node(int nid) cc.nr_freepages = 0; cc.nr_migratepages = 0; + cc.total_migrate_scanned = 0; + cc.total_free_scanned = 0; cc.zone = zone; INIT_LIST_HEAD(&cc.freepages); INIT_LIST_HEAD(&cc.migratepages); -- 1.8.3.1