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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B51C5CA9EBE for ; Sat, 10 Oct 2026 09:42:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:To:References:Message-Id: Content-Transfer-Encoding:Cc:Date:In-Reply-To:From:Subject:Mime-Version: Content-Type:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7B7TgaAJNDdxFCAT6n7BBRtHLR7fn0ke7ZNiMxn4Uls=; b=NCqtCykSINcywQisUeDQOQ/q8V CKh4Zj99VAwouOqKi8BOLYaFmZboFCZ2gsnN+wtC7uDz50XJxL6jx5P+SbiVs6bDVBahhTeF/01JS he2iTj4dN/JpjV8vnqUi9MKueWyNEcadphcQGTOvKiKckWp6rGb4PtApJcWWnlqMycSlSVN+/bs+6 Dk33JXCePW4VRAiezhp8JvQ0jDjSMy5r3QCYAsREA4BRNgHVSQfE9IWIYZppN+vtJ/kssnblFQeOR Pm8WU3CV+o1vmssjEd99cUwSBQvHo86H1/6GRSJ+af6BWN0gB77OJ3/HfAxADkUw946D65GQkswdG k24olQwg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xFTbF-00000007nHi-0Ad3; Sat, 10 Oct 2026 09:42:41 +0000 Received: from out-239.mta1.migadu.com ([2001:41d0:203:375::ef] helo=mta1.migadu.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xFTbB-00000007nGp-0bu2 for linux-arm-kernel@lists.infradead.org; Sat, 10 Oct 2026 09:42:38 +0000 X-Envelope-To: linux-arm-kernel@lists.infradead.org DKIM-Signature: a=rsa-sha256; bh=AYKq4I4pt+XRaSTHkcogaEaoukmbVRkhJcniZ//zAgg=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791625355; v=1; x=1792230155; b=GkHp9HYwYhlAfeZazSdWeQJrN0BWOreotNM+3ynVXJ6yGnjdQ2Yu157g2bWLcwgamVXkbA93 qVTxIRGoZu3xUgv3nCKemIeKJWgUI7gLXasWnweZklqS1PpbQmM0g6iIdshtoRXyUsOG3ecPmHy UyKbqa5ut/uLpAJg0pbhzZew= X-Envelope-To: linux-arm-kernel@lists.infradead.org Received: by smtp.migadu.com with ESMTPS id 57f0757703d8e229; Sat, 10 Oct 2026 09:42:34 +0000 X-Mizu-Trace-ID: 57f0757703d8e229 X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3901.100.1.1.12\)) Subject: Re: [PATCH 0/4] mm: Fix page-table teardown during memory hot-remove From: Muchun Song In-Reply-To: Date: Sat, 10 Oct 2026 17:42:18 +0800 Cc: Muchun Song , akpm@linux-foundation.org, linux-mm@kvack.org, stable@vger.kernel.org, david@kernel.org, osalvador@suse.de, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, linux-riscv@lists.infradead.org, agordeev@linux.ibm.com, kevin.brodsky@arm.com, bjorn@rivosinc.com, apopple@nvidia.com, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: References: <20261008073021.2512665-1-songmuchun@bytedance.com> To: Dave Hansen X-Mailer: Apple Mail (2.3901.100.1.1.12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261010_024237_317340_70647D67 X-CRM114-Status: GOOD ( 11.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > On Oct 10, 2026, at 04:48, Dave Hansen wrote: > > On 10/8/26 00:30, Muchun Song wrote: >> This series is limited to bug fixes for the existing teardown paths. > > Why is this a series? Why not send the architectures independently? Is > there some dependency where they all need to be applied at once? What do > you want done with this series? Are you expecting it to be merged via > the mm path or the individual arch maintainers? You're right that there is no strict dependency across all three architectures in v1. I grouped them because they address the same page-table constructor/destructor imbalance exposed during memory hot-remove, but that alone does not require them to be applied as one series. For v2, I will move the common destructor handling into pagetable_free() as suggested by David. The RISC-V and arm64 fixes will then depend on that common MM change, so I plan to keep them in one series and have it go through the MM tree, with review or acks from the relevant architecture maintainers. Thanks, Muchun