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 BD015F30950 for ; Thu, 5 Mar 2026 11:54:48 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 351B46B0098; Thu, 5 Mar 2026 06:54:48 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 31C316B0099; Thu, 5 Mar 2026 06:54:48 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2464B6B009B; Thu, 5 Mar 2026 06:54:48 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 0E4E66B0098 for ; Thu, 5 Mar 2026 06:54:48 -0500 (EST) Received: from smtpin11.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id D21601B8282 for ; Thu, 5 Mar 2026 11:54:47 +0000 (UTC) X-FDA: 84511852614.11.25E1DD8 Received: from out-182.mta0.migadu.com (out-182.mta0.migadu.com [91.218.175.182]) by imf18.hostedemail.com (Postfix) with ESMTP id 422FC1C0011 for ; Thu, 5 Mar 2026 11:54:46 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=tLqVajZa; spf=pass (imf18.hostedemail.com: domain of qi.zheng@linux.dev designates 91.218.175.182 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=1772711686; 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=Bsiu7pywRe/tYpEplG5M9eVQFfg0ofyrV9UsP0kQ95O21o55EJUurnybWq8K6uahRwsBT/ r8vzThi/nClw5lCjiTwrvIjQUo/12pmdl1VyJ3KfBxVExkq8sAi2oKvD/ShS0auYbdWWQO lw7kl65lksV81oJjybCsT76SabFldI4= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=tLqVajZa; spf=pass (imf18.hostedemail.com: domain of qi.zheng@linux.dev designates 91.218.175.182 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=1772711686; a=rsa-sha256; cv=none; b=ksnCM864n1SHmA+UiCRwlU0lG9ZYr/j3HHDxqN3zY/m43sB16qXqOWewKNN1xgw378iE5h e1er39xFjMB1fwLwRPREDKPx4wueVjab5gbwrSjSLHzegHvmf44BZ3u4j5bT0/nTFeHZsO 6NE/P62PDEKxBNCChPKYE1htE4kG8HM= 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=1772711684; 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=tLqVajZa0xN3lq32q2+2Y4z9uopzjIj0kne1M5U790g7TRavQL0V3m9ke0lTp/jRilYTmq QGM4MpTzczQ6P/FzEGVqDeKjKdRgV2qB0vEPjRi5TqlU5ip4lINogf03VoPWaITp1kM6/A xrgYdM62LA0CM3iFJjfGUhdkzQAxLUc= 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 v6 04/33] mm: vmscan: prepare for the refactoring the move_folios_to_lru() Date: Thu, 5 Mar 2026 19:52:22 +0800 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 422FC1C0011 X-Stat-Signature: 8uektimg8fasfafamt9iaab5gnhmnzai X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1772711686-459854 X-HE-Meta: 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 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