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 53D4F344031 for ; Thu, 27 Aug 2026 23:47:28 +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=1787874449; cv=none; b=P5eUT/TUDYDOA4Iu3kAvqpE8Mb6m8+2cQ9oHPm0JjH+Zn2jmAvjAuajfkkY1e661cI3eubwSjVbEr9HUEaJPjN2zG49K691p7Ma9DWa6vxUltIzlDu8UFzdmOso4e5uuqUIG/NoObIYSKkTq6bByTFEmDNI5i0upDoWfQha9rGY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787874449; c=relaxed/simple; bh=XBhPG+6Dr6CO0ZYGyASnz1zIW8XrRj6w2+sUmw0QPyw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mfnSI57TqeulSgkzosgTKplvJKN4Hnlc6FWc5us0hfBo4VN5NzEY6vql+PwbJHumlQfgtPj9If2z0KoPiYwCzvIVcdBkP9pnQ7AtyRKKM+3OW7uuI2EGJfsccqoUi2u9h1u3jL2mzbQGq9JM5KTG3ib1yjZkkdaVjVKNI5Tp3JU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XhR8wbY7; 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="XhR8wbY7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E7ED1F000E9; Thu, 27 Aug 2026 23:47:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787874448; bh=XpoXXZeU8kWFe5s2ICH1kueGMPGyd+PONtE3ej8VrGI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=XhR8wbY755E4SSkqcE9MoEeN68jEYcQaM1A4b08q+UG4rIUxm2uAv78LbMZvoh5d+ g6gehELG5vSwKTnG3B5FcTDJIUvvrx1QIMwyfn5Fj4EIbmoSFehR1i0enLupWQPP/n qKsntasHkCzEdm6QEYabfxmLMIEFDkavBd1LMsseR8AA9Cfoh+/mNJf+ljS2s71GFT 84kmA6eZXYM2jYuSgOgeIFPSMnCvGM9XFK2ifqLhr7LC7Bryn8yZ0Fgtk2ROpUJt2q 1+sjhqBDeCGIJ3BBxOy/CeZ9CJo49A+dEPKpafC9wKqCAisBjBXuw+ie/Z5ZpEQo7a Wvp1+J8J+xLnA== From: "Barry Song (Xiaomi)" To: akpm@linux-foundation.org, lianux.mm@gmail.com 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, linux-kernel@vger.kernel.org, linux-mm@kvack.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 Subject: [PATCH v2 4/7] mm/mglru: exclude folios promoted by aging from protected in inc_min_seq() Date: Fri, 28 Aug 2026 07:47:01 +0800 Message-Id: <20260827234704.63163-5-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20260827234704.63163-1-baohua@kernel.org> References: <20260827234704.63163-1-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 --- mm/vmscan.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index b10d1703d907..2b33d3f44682 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3952,17 +3952,17 @@ 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