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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E7239E91298 for ; Thu, 5 Feb 2026 08:57:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 370CC6B0098; Thu, 5 Feb 2026 03:57:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 31A2B6B0099; Thu, 5 Feb 2026 03:57:01 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2547E6B009B; Thu, 5 Feb 2026 03:57:01 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 145716B0098 for ; Thu, 5 Feb 2026 03:57:01 -0500 (EST) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id B637AB94FC for ; Thu, 5 Feb 2026 08:57:00 +0000 (UTC) X-FDA: 84409798200.14.EEE9394 Received: from out-174.mta1.migadu.com (out-174.mta1.migadu.com [95.215.58.174]) by imf02.hostedemail.com (Postfix) with ESMTP id 00F3780005 for ; Thu, 5 Feb 2026 08:56:58 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=rLlYUxEO; spf=pass (imf02.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.174 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1770281819; 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=Xl55ZD/XpxuV+TwMC87ANkfW8PG21jVvZfSxHlx1S54=; b=zq99lEGgsh0U+czQ/GgZ+whVxiPkWFkQ6axP11sap7BT+G1l+673uJNatlK8xQbDRfCafW LwIdG76xhgv1YoSsK41GSFQEF2vvK7OA4MLsKg+pUvxD9CXkHsTGlTOmPnpQkCLnnCG9aI sBxddy1SdqWxYX33jZlsDPQZu5q72zw= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=rLlYUxEO; spf=pass (imf02.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.174 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1770281819; a=rsa-sha256; cv=none; b=y3Kk8Ok1zZzak/GNHHEUaT10603UF91sKw69qL5fIxN/kba4BrcphvcLIVQXkWYO3IAlo2 8sRqHRc9juzNZSe7bi0EKm70rpv0NWFAt/UEiVqsn7zGZrr5rFEYmdxnkVwNWfvjCBUcH7 3NrSYlF8pS8X3uqCj5Hvu/+SylxRhT4= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1770281817; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Xl55ZD/XpxuV+TwMC87ANkfW8PG21jVvZfSxHlx1S54=; b=rLlYUxEOw0iWYZ4PNnhDDiZpDRQmGWtNZYhMjkOs7ukos96vL4wekfsabjh5SBEnAHtCWs k2VFJrJk9OHsKvnamwLWa5fq/jxdbJPNANyWbDRKoABAV1YaM1cS7NwVW1F0Rxi48pw8c+ n0BGRtlAaOs3GY95R4tzkHiB5eCxNFo= From: Qi Zheng To: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, bhe@redhat.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Qi Zheng , Chen Ridong Subject: [PATCH v4 04/31] mm: vmscan: prepare for the refactoring the move_folios_to_lru() Date: Thu, 5 Feb 2026 16:54:33 +0800 Message-ID: <2a61a9f46870a987ec4426cbf88177d9e2ddd628.1770279888.git.zhengqi.arch@bytedance.com> In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Stat-Signature: 5oyxebfoe8ccojgib6cftewtpgo6n5ui X-Rspamd-Queue-Id: 00F3780005 X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1770281818-629678 X-HE-Meta: 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 tPdJJg5t 2+hHV6oN0RB8Dx82BtfpPea3S0ouddE385W/EuD3HeiEXbL/md64NaWi2Wdp1zadcdlZpb0sqIdow3uxLZcLkbQ1WlKVBa7gPuURh7t0fFEm3BF9dNOrJ/Wxt8nZ2W3QJSESW4Qfy1w2ZGF1ccmz0s/sF74fOKVC9RHNCo2ZLYrI7HyQ95fJQ7+J+z1adDMm3h765hAWirdq88s8QdVUxBzv5rNMdZcqJg/EG+Dgm01sQ5X8U6p9/+wn4xyCWTk84aaIlSL7/r5AC6ncsaSTPF1TyqGQ9tHBe6fCF6iz1q+cfT1sAGkiG1Wcq6Iir1zK+awRBlW+Q8576yAuiCeDVcACk2Q== 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: List-Subscribe: List-Unsubscribe: From: Qi Zheng Once we refactor move_folios_to_lru(), its callers will no longer have to hold the lruvec lock; For shrink_inactive_list(), shrink_active_list() and evict_folios(), IRQ disabling is only needed for __count_vm_events() and __mod_node_page_state(). To avoid using local_irq_disable() on the PREEMPT_RT kernel, let's make all callers of move_folios_to_lru() use IRQ-safed count_vm_events() and mod_node_page_state(). Signed-off-by: Qi Zheng Acked-by: Johannes Weiner Acked-by: Shakeel Butt Reviewed-by: Chen Ridong Reviewed-by: Harry Yoo Acked-by: Muchun Song --- mm/vmscan.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index a4892f5e3d347..f595e063faeec 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2028,12 +2028,12 @@ static unsigned long shrink_inactive_list(unsigned long nr_to_scan, mod_lruvec_state(lruvec, PGDEMOTE_KSWAPD + reclaimer_offset(sc), stat.nr_demoted); - __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); + mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); item = PGSTEAL_KSWAPD + reclaimer_offset(sc); if (!cgroup_reclaim(sc)) - __count_vm_events(item, nr_reclaimed); + count_vm_events(item, nr_reclaimed); count_memcg_events(lruvec_memcg(lruvec), item, nr_reclaimed); - __count_vm_events(PGSTEAL_ANON + file, nr_reclaimed); + count_vm_events(PGSTEAL_ANON + file, nr_reclaimed); lru_note_cost_unlock_irq(lruvec, file, stat.nr_pageout, nr_scanned - nr_reclaimed); @@ -2178,10 +2178,10 @@ static void shrink_active_list(unsigned long nr_to_scan, nr_activate = move_folios_to_lru(lruvec, &l_active); nr_deactivate = move_folios_to_lru(lruvec, &l_inactive); - __count_vm_events(PGDEACTIVATE, nr_deactivate); + count_vm_events(PGDEACTIVATE, nr_deactivate); count_memcg_events(lruvec_memcg(lruvec), PGDEACTIVATE, nr_deactivate); - __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); + mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); lru_note_cost_unlock_irq(lruvec, file, 0, nr_rotated); trace_mm_vmscan_lru_shrink_active(pgdat->node_id, nr_taken, nr_activate, @@ -4757,9 +4757,9 @@ static int evict_folios(unsigned long nr_to_scan, struct lruvec *lruvec, item = PGSTEAL_KSWAPD + reclaimer_offset(sc); if (!cgroup_reclaim(sc)) - __count_vm_events(item, reclaimed); + count_vm_events(item, reclaimed); count_memcg_events(memcg, item, reclaimed); - __count_vm_events(PGSTEAL_ANON + type, reclaimed); + count_vm_events(PGSTEAL_ANON + type, reclaimed); spin_unlock_irq(&lruvec->lru_lock); -- 2.20.1