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 8EBC6CCD1AB for ; Wed, 22 Oct 2025 10:00:24 +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:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vB9mXiKGH//ZjNPXu2UbFkQNzxkm6NBQrA35JISHdMI=; b=YqCFuiLN00BaNdwWlbPgYHgDwL RmMsu7/1Gy+9g11as5wUPhPzHz/KAoh1Dy9uYrYnqkDCUbSHGv97vKjrAX10+ZCI4BmKP3VoN+4hr +HyWzPY+qPkCgVf6h49+jXV32TtMR35Fv8FmihTdOCy12zskxo3t+M+tT4kdTwkr6X9QmGDNlWeGe zvsSgVSA4pWNGri2ILWeGMIBDuNcikOYWKBx5d1awpeo76W250BCAEXN3SFI2WXB4y7wldJjfCYLa xGthd0iWtVco7FUH5jCk74XstBNBjN/7Vtx7SKnVJVgNUj4faSzWtYs4WDDUCUXu17nDirawIEK29 jPDQvs+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vBVdi-00000002NCq-1ItD; Wed, 22 Oct 2025 10:00:18 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vBVdg-00000002NCA-2qqq for linux-arm-kernel@lists.infradead.org; Wed, 22 Oct 2025 10:00:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 1783361D03; Wed, 22 Oct 2025 10:00:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D775C4CEE7; Wed, 22 Oct 2025 10:00:14 +0000 (UTC) Date: Wed, 22 Oct 2025 11:00:12 +0100 From: Catalin Marinas To: Kefeng Wang Cc: Yang Shi , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, syzbot+d1974fc28545a3e6218b@syzkaller.appspotmail.com, Will Deacon , David Hildenbrand Subject: Re: [PATCH] arm64: mte: Do not warn if the page is already tagged in copy_highpage() Message-ID: References: <20251021181353.3842660-1-catalin.marinas@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: 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 Wed, Oct 22, 2025 at 02:19:19PM +0800, Kefeng Wang wrote: > On 2025/10/22 3:00, Yang Shi wrote: > > On Tue, Oct 21, 2025 at 11:14 AM Catalin Marinas > > wrote: > > > The arm64 copy_highpage() assumes that the destination page is newly > > > allocated and not MTE-tagged (PG_mte_tagged unset) and warns > > > accordingly. However, following commit 060913999d7a ("mm: migrate: > > > support poisoned recover from migrate folio"), __folio_mc_copy() is > > no "__" prefix Yes, I got lost in underscores. Thanks. -- Catalin