From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8BD4F606A31A for ; Thu, 29 Oct 2026 22:05:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=AVhylnYD; dkim=pass (1024-bit key, unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=Q1HLeuNJ 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-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=BOIOVIeuoZTPYLCw9qgl59aa+oUmsxHGBfBI4tPDjNk=; b=AVhylnYDX+NiNryrXTE2JdbDIv Z4n1r75QAmVY9BiwFrrgnmOy+cBmG3He37/bYfjXpk4nQZRJx1Hsz2OifIUzf6aN7u7Z9GP5xCpKC Wg1IkGv9HPiasnWTjoAFb30Dqnf95RpUh/yFlJCxBFjszrCFNRQxFBRq+aYlAyiez9YmiH8KZAKMZ pDaYn+mgZIBJkVmUCO/+tsci1vVq4ZurJIXGZ5eTyTBNMPczQMO4/CWPP5LwYfUm9Ci3Cw88aQoWv l3GfoUI34fbQOwHQZVyoZkzE8ndXHaw5p19yPnrclGpRVjSbxo4oicfGOiVcnVQALdCatFuZXMFRf DW7VjGpw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xMYFM-0000000ASVp-2AdL; Thu, 29 Oct 2026 22:05:20 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xMYFJ-0000000ASV0-0MjY for linux-arm-kernel@lists.infradead.org; Thu, 29 Oct 2026 22:05:18 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BDA4815A1; Thu, 29 Oct 2026 15:05:12 -0700 (PDT) Received: from arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CE5AD3F673; Thu, 29 Oct 2026 15:05:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1793311515; bh=Ijs585yEk7skk5Tt9uzpTzRD8zZrNST3f/danWDydDE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Q1HLeuNJ6kUbLgKJbyCy8NiFp2jr5MnpfDLave9KjaLtv7f17AEgdwnAF7e5lb6Ro tVVtAHTLlFvSsEdFncJ6eGP961Hg7yMz4IR1dHygDt/zYxGNOmAmFdq9mHa/82Rt1J eh9vd1QlT9ochELhnF9vdn4cxoch5nBM4dVrR9B0= Date: Thu, 29 Oct 2026 22:05:11 +0000 From: Catalin Marinas To: Fuad Tabba Cc: Marc Zyngier , Oliver Upton , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Joey Gouly , Suzuki K Poulose , Zenghui Yu , Steffen Eiden , Will Deacon , Mark Rutland , Steven Price , Yang Shi , David Hildenbrand , Lorenzo Stoakes , Fuad Tabba , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 4/4] arm64: mte: Add mte_clear_folio_tags() Message-ID: References: <20261021110700.493315-1-fuad.tabba@linux.dev> <20261021110700.493315-5-fuad.tabba@linux.dev> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261021110700.493315-5-fuad.tabba@linux.dev> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261029_150517_172572_C134CE6A X-CRM114-Status: UNSURE ( 8.80 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.4 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Wed, Oct 21, 2026 at 12:07:00PM +0100, Fuad Tabba wrote: > mte_sync_tags(), sanitise_mte_tags() and kvm_vm_ioctl_mte_copy_tags() > each open-code the loop that clears the tags of every page in a hugetlb > folio. Add mte_clear_folio_tags() and use it in all three. > kvm_vm_ioctl_mte_copy_tags() then tests for hugetlb first, as it does > where it sets the tagged flag below. > > No functional change intended. > > Suggested-by: Lorenzo Stoakes (ARM) > Signed-off-by: Fuad Tabba Reviewed-by: Catalin Marinas