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 A256AEFD204 for ; Wed, 25 Feb 2026 07:50:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 01B0E6B0093; Wed, 25 Feb 2026 02:50:17 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F3EBF6B0095; Wed, 25 Feb 2026 02:50:16 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E3DE06B0096; Wed, 25 Feb 2026 02:50:16 -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 D296D6B0093 for ; Wed, 25 Feb 2026 02:50:16 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 88E4A1404AE for ; Wed, 25 Feb 2026 07:50:16 +0000 (UTC) X-FDA: 84482206032.01.51B34A8 Received: from out-172.mta0.migadu.com (out-172.mta0.migadu.com [91.218.175.172]) by imf05.hostedemail.com (Postfix) with ESMTP id CCDB910000A for ; Wed, 25 Feb 2026 07:50:14 +0000 (UTC) Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=NCnR9f4t; spf=pass (imf05.hostedemail.com: domain of qi.zheng@linux.dev designates 91.218.175.172 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=1772005815; 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=6HAmieQx96uUJHkqmiULZYRo0O0Tag2Ie6J1oo57wFA=; b=TKKOGbjKEvEL0ng+RQlFgmVdPl7PoRluNq7vrRQBwJssdxUdQRSqqk4S3Vw9z3rNYcxxVJ 6LvK3opqkDamCELxgkR3qZbunOcG7+N3LNG+h2JOWEB8ElujQ/S9p+ApJNvGAjOfZEgpZE c72euR0ZuiWgYDeedsi3RLYsSGBmPWI= ARC-Authentication-Results: i=1; imf05.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=NCnR9f4t; spf=pass (imf05.hostedemail.com: domain of qi.zheng@linux.dev designates 91.218.175.172 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=1772005815; a=rsa-sha256; cv=none; b=X6ZcTuv2kbQd2iwnVTIF9SwNSO/157aOe6rQe+kpF55SUWyHDk5cXbv2nZKuDgOOel22HJ LCzP/s1+dsUdtj3q5appBD4DFKqSefAcn8mjGPa0EeV394nz2JLi+RHIH2g602BQACiD5C 2sULxJnHJ/3N3OrMB55yBXEm+YawEQo= 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=1772005812; 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=6HAmieQx96uUJHkqmiULZYRo0O0Tag2Ie6J1oo57wFA=; b=NCnR9f4t41tnLyZIMNtwlBFw7ejRjvtobpnuJm8KeUjpFgAngQJZJesmHOgR96X6VYQwuR 6p2EsqIMCTGStMPoLFi1+V93HVsUAq36kTiCMDkgWGfqEokdiXUY8XamHk6qtbIm6PPXYu +6VVmFQpwvXQB0Ij8MyTGdn9TSYTsD8= 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, usamaarif642@gmail.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Qi Zheng , Chen Ridong Subject: [PATCH v5 04/32] mm: vmscan: prepare for the refactoring the move_folios_to_lru() Date: Wed, 25 Feb 2026 15:48:37 +0800 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Stat-Signature: 87inac1k689ff6zdzjpa9se54kwwkba3 X-Rspam-User: X-Rspamd-Queue-Id: CCDB910000A X-Rspamd-Server: rspam01 X-HE-Tag: 1772005814-402871 X-HE-Meta: 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 o7DbHneg KkkFcIVxl2nRz0a0ns73raHT9DoI2SA3ktbWbNbpS/odMQFd/82nFo447JKkvtmCY6GqJYgKyRs2kLyjClhsUiNQuif5ttcbazcNk1efdZUc2RpG8+6h4Pn/wL3rE52SDfOQpl/sRuNhUuJzCeIax50wlpJA5dBurDleAl7TOPrnJlMxSVg2UQ8G9eLi01kcG0Av32hLovzXALNXEcG5/buuRn+2G7DLYxsc2W0PwWFItEbx3DWzeVfThZyeeFjqxk92btTae7G7HpJYqOQDPaY7NgItkgL9eVzpfKK4UR2XyV1GGL23JBa5I6rqGCdjmMFQUs50W3lD6ZBSTEA3PbGilZg== 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 | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 223d584421a9e..2a32dce8d8394 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2025,7 +2025,7 @@ 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); mod_lruvec_state(lruvec, item, nr_reclaimed); mod_lruvec_state(lruvec, PGSTEAL_ANON + file, nr_reclaimed); @@ -2171,10 +2171,10 @@ 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, -- 2.20.1