From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A47FB606A32A for ; Wed, 11 Nov 2026 23:26:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=EZxbUB/Z Received: by kanga.kvack.org (Postfix) id AE7206B05D6; Wed, 11 Nov 2026 18:26:20 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id ABF566B05D7; Wed, 11 Nov 2026 18:26:20 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9FCA16B05D8; Wed, 11 Nov 2026 18:26:20 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 80FF26B05D6 for ; Wed, 11 Nov 2026 18:26:20 -0500 (EST) Received: from smtpin14.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id F040B40478 for ; Wed, 11 Nov 2026 23:26:19 +0000 (UTC) X-FDA: 85424424078.14.676D4F8 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf10.hostedemail.com (Postfix) with ESMTP id 56F59C0003 for ; Wed, 11 Nov 2026 23:26:18 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="EZxbUB/Z"; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf10.hostedemail.com: domain of baohua@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=baohua@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1794439578; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=XP8BVGG3k/SgxxucX4Qss0oWT0tMPudgWX8MpTd7f+o=; b=pOMtX+ybd5U2FztZmv9L7nkhiq67lB3c+jkc4Qqha3V4dQwHEk3pPeui+Bbt5jgPTYo0aK 4kozpYQWoO9NtG18D3WuL4tweUW5wh1AbTu2HFGZEPDmiafEfDTJo2AA29+vsxXB2OStF0 miPF9Tbsaewga1yn4ke6TLvEYiLMWjE= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1794439578; b=GbrqmOCMV/x3PszSJIPqsWR6bPgvWZ15vDeMbuNCHka0YdJArTbkWzVoUXChzXa/fKG3Cq Vk0UlogtmOqCgwMQ3W4Uq20IZPNHNW9lw7ePQyxJDcf2TaDgwqA7dPyfJc2kNLkHD8/npP cukJYWJPEt3tLruwc1fQ2BSeebhLtng= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="EZxbUB/Z"; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf10.hostedemail.com: domain of baohua@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=baohua@kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id D400063611; Wed, 11 Nov 2026 23:26:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D65701F00A05; Wed, 11 Nov 2026 23:26:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794439577; bh=XP8BVGG3k/SgxxucX4Qss0oWT0tMPudgWX8MpTd7f+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=EZxbUB/Z7guwRZZ/08dAkZz0LLA30SSS8kVtBtH9dYNhkk9vo6OFA4OpKQuBqvgu9 ZZ5/r5dgZSqPgmVcV2Q+lXJ/NUxMWFHlyHYLNXCBaRbyQchcCFmHR9YX9wJkMzzbsu 8KN7bKEzSXiWbtcIOW+x0kQp6JwGQ0yRc7npIsi68uHbU7aaR6XBXoP/+yRG4DY6bK hMO9FKhAI9hzwGHgsxktbCQ2WqINtAqESUm1LNfLdJxFXBidzOn3mimI1kuIj/csJ1 TOynbEFY9zJNPbE/yL584+dd8QVtkaonKTZARJ1LILP+K6bzwYlE0BcvGNsARa1L4Y pmbk4YTy+md9Q== From: "Barry Song (Xiaomi)" To: akpm@linux-foundation.org Cc: axelrasmussen@google.com, baolin.wang@linux.alibaba.com, baoquan.he@linux.dev, hannes@cmpxchg.org, hui.zhu@linux.dev, kasong@tencent.com, kunwu.chan@gmail.com, liam@infradead.org, lianux.mm@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, liuxiang.277@bytedance.com, lyugaofei@xiaomi.com, mhocko@kernel.org, mhocko@suse.com, qi.zheng@linux.dev, ridong.chen@linux.dev, rppt@kernel.org, ryncsn@gmail.com, shakeel.butt@linux.dev, surenb@google.com, wangzicheng@honor.com, weixugc@google.com, yuanchu@google.com, zhangbo56@xiaomi.com, zhuhui@kylinos.cn, sidchintamaneni@gmail.com, Barry Song Subject: [PATCH v7 01/16] mm/mglru: report evictable sizes per type Date: Thu, 12 Nov 2026 07:25:48 +0800 Message-Id: <20261111232603.9934-2-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20261111232603.9934-1-baohua@kernel.org> References: <20261111232603.9934-1-baohua@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 3hqqiprpjd8wk13gm1bzomq61a43gom7 X-Rspam-User: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 56F59C0003 X-HE-Tag: 1794439578-16407 X-HE-Meta: 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 7k/Fwy8c 0Ft3q04nS0BguCihMwpaPD/9RfNNW+kyQWqUZzm7lXeTRiMfzPUDUBSKC8BVX1GrEXsSmkS1EkSUt1DtnpNhlRaZcld2gUSRAFSidhaWoPQLCiPzFSTkjWGfHKsbTRn9z76QFPCHok7LTrQ6G+ad3nkgdx8kY1T2kSqxgptmePxAa31sj/pGg784fHUsm/vgZBP857vLiLIRNMV3srx7pDe3zQ/7oANLTqR7+D+wrKkrT2lvZzWOeME0DG6egeeP0jfPrA2/weM4fttOzrtIrCxCBSK9eCus4q5nE+HWV1kceDjqCam+QZ0CtdBqX4Ts7x0gOp1gRFv8770Nz9DS5R/JOBI+IcwYU9crQ Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 From: Kairui Song Change lruvec_evictable_size() to return the number of evictable anonymous and file pages separately instead of a single total, so that callers can weigh the two types independently. Update lruvec_is_sizable() and get_nr_to_scan() accordingly; the summed totals are unchanged, so there is no functional change. Signed-off-by: Kairui Song Signed-off-by: Barry Song (Xiaomi) Reviewed-by: Kunwu Chan --- mm/vmscan.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 061fbd168d98..acc4efccda2f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4192,28 +4192,31 @@ static void set_initial_priority(struct pglist_data *pgdat, struct scan_control sc->priority = clamp(priority, DEF_PRIORITY / 2, DEF_PRIORITY); } -static unsigned long lruvec_evictable_size(struct lruvec *lruvec, int swappiness) +static void lruvec_evictable_size(struct lruvec *lruvec, int swappiness, + unsigned long nr[]) { int type; - unsigned long seq, total = 0; + unsigned long seq; struct lru_gen_folio *lrugen = &lruvec->lrugen; DEFINE_MAX_SEQ(lruvec); DEFINE_MIN_SEQ(lruvec); + nr[LRU_GEN_ANON] = 0; + nr[LRU_GEN_FILE] = 0; + for_each_evictable_type(type, swappiness) { for (seq = min_seq[type]; seq <= max_seq; seq++) - total += lruvec_gen_size(lrugen, type, seq); + nr[type] += lruvec_gen_size(lrugen, type, seq); } - - return total; } static bool lruvec_is_sizable(struct lruvec *lruvec, struct scan_control *sc) { - unsigned long total; + unsigned long total, sizes[ANON_AND_FILE]; int swappiness = get_swappiness(lruvec, sc); - total = lruvec_evictable_size(lruvec, swappiness); + lruvec_evictable_size(lruvec, swappiness, sizes); + total = sizes[LRU_GEN_ANON] + sizes[LRU_GEN_FILE]; /* whether the size is big enough to be helpful */ return total >> sc->priority; @@ -5021,7 +5024,7 @@ static bool should_run_aging(struct lruvec *lruvec, unsigned long max_seq, static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, struct mem_cgroup *memcg, int swappiness) { - unsigned long nr_to_scan, evictable; + unsigned long nr_to_scan, evictable, sizes[ANON_AND_FILE]; struct pglist_data *pgdat = lruvec_pgdat(lruvec); /* @@ -5037,7 +5040,8 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, return 0; } - evictable = lruvec_evictable_size(lruvec, swappiness); + lruvec_evictable_size(lruvec, swappiness, sizes); + evictable = sizes[LRU_GEN_ANON] + sizes[LRU_GEN_FILE]; nr_to_scan = apply_proportional_protection(memcg, sc, evictable); nr_to_scan >>= sc->priority; -- 2.34.1