From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7AC644734D3 for ; Tue, 1 Sep 2026 23:24:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788305086; cv=none; b=m4pckQQeiYFqyrt/uWFay2UhjahU6uLNVeVFElchjqfNE5ayly25wvPQdt0QOlp/sCl1MJSj3+JU9kNMxT1lDJrh8C7IgOEp9Fsd1+mz1/hrC7yKfH2wsosrUrrdlzzaWM5k9vKl4xHEQkTgJL2r/BMVaXLBKhcn5DlZ+kuZifA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788305086; c=relaxed/simple; bh=ftgkjq6TXNX4FIULhVflBvdBaWOKXrO9O9lbOJaduH0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nLK24JaoWWjH+asBGBLZ6fc3l5b4rXI3Ig8zk5F85AJxhbgryJ+DfWzqlmfq7ykeoGY3YhIZzLwh6P+AIHUZQlN3MwegMk2DQcTDUFJB1I8anbsQrNyQ0keo+u8vC/WMXhPDf6SdW1/NbMPBa6LiRWhU/blm6VtKo4v4NCkxsuY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AxdpiHeb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AxdpiHeb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FDC31F00A3D; Tue, 1 Sep 2026 23:24:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788305085; bh=PgOmxkUUjVNV1Eh5GMR0aIwGNf9xgs0cOpQXYVxNorE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=AxdpiHeb7kJvNzMGM7D5vEhXi7aegklfIJNMxOX683Do1AQIZNYHwN6ILMk2lUsko cvujbCse6W3W8ZTMaEckADtZ1pGV2z3BmYmf6cqB9k+7oXeukTVEtTpS9X8Ofkjun4 qGnuB77ySAUsIEipMxEHjiJO8xwpPnjSm2BKrcwFxzwOr/nLkwe1KTFzIP0B++Iyva Yxk2e3ZHHRs4mVY4BWaaLD6VscDJJiHGyPAOTmCUpAeCWhOjaTsccmAnobtiZIBaEM 4RH3KZqA7379HOf0RhZ/+/hHi9X1HFovC5ei3N5Y8MZ5Jja2V8a9BfAaevKBNkLB32 ai2Lhi1XrkGrQ== From: "Barry Song (Xiaomi)" To: akpm@linux-foundation.org, linux-mm@kvack.org Cc: axelrasmussen@google.com, baolin.wang@linux.alibaba.com, baoquan.he@linux.dev, chenridong@xiaomi.com, david@kernel.org, hannes@cmpxchg.org, kasong@tencent.com, lianux.mm@gmail.com, linux-kernel@vger.kernel.org, ljs@kernel.org, lyugaofei@xiaomi.com, mhocko@kernel.org, qi.zheng@linux.dev, shakeel.butt@linux.dev, stevensd@chromium.org, wangzicheng@honor.com, weixugc@google.com, yuanchu@google.com, zhangbo56@xiaomi.com, "Barry Song (Xiaomi)" , Xueyuan Chen , Ridong Chen Subject: [PATCH v3 4/7] mm/mglru: exclude folios promoted by aging from protected in inc_min_seq() Date: Wed, 2 Sep 2026 07:24:18 +0800 Message-Id: <20260901232421.40157-5-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20260901232421.40157-1-baohua@kernel.org> References: <20260901232421.40157-1-baohua@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Some folios may have been promoted during aging, so don't count them as protected, similar to sort_folio(). Signed-off-by: Barry Song (Xiaomi) Reviewed-by: Baoquan He Tested-by: Xueyuan Chen Reviewed-by: Ridong Chen Reviewed-by: Lian Wang --- mm/vmscan.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 95d48f9efc09..ca57f6095b37 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3957,17 +3957,17 @@ static bool inc_min_seq(struct lruvec *lruvec, int type, int swappiness) if (gen_increased) { delta += nr_pages; list_move_tail(&folio->lru, &lrugen->folios[new_gen][type][zone]); + + /* don't count the workingset being lazily promoted */ + if (refs + workingset != BIT(LRU_REFS_WIDTH) + 1) { + int tier = lru_tier_from_refs(refs, workingset); + + WRITE_ONCE(lrugen->protected[hist][type][tier], + lrugen->protected[hist][type][tier] + nr_pages); + } } else { list_move(&folio->lru, &lrugen->folios[new_gen][type][zone]); } - /* don't count the workingset being lazily promoted */ - if (refs + workingset != BIT(LRU_REFS_WIDTH) + 1) { - int tier = lru_tier_from_refs(refs, workingset); - - WRITE_ONCE(lrugen->protected[hist][type][tier], - lrugen->protected[hist][type][tier] + nr_pages); - } - if (!--remaining) break; } -- 2.34.1