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 D0C9C606A325 for ; Mon, 9 Nov 2026 12:37:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=XDvINi9K; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=uFt9q5Em 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:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=7ehu9uwlN6f/BG1RO8PBmrITOSCd6PjFswkCZHpoDnw=; b=XDvINi9KLuZWMy PYwCS736dx1gRjvhF2YCPphPN/XmC6XzW/J/DVJyo+OYZL84xUj+mr0ALFW8qU11XFUMSwA1XW4x1 YQvH1DFMcC/mLB9FSQCWsaHOSnRyV6iuGLizWF2HCaHICa1WgJKk0j2DlQ8bhhBqzaEUT8Paq2+ox /LAAppb5SG9HMEHR94JRX8H/GNpLQ+pot60aKgLUuDLbpGfmBwirxLbDqAGsqLc0f/ssfWDcun015 gHYCDVbTJKfDs8drrK9/VKOZAyUr7jN1qDCHGhrOu0EjYgBiLp0euS+CpyegOPJEQDgv4Ilm8zte5 ObrtMH2dkJ8wqLXGAhnA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQOcI-00000000iCV-2a6b; Mon, 09 Nov 2026 12:36:54 +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 1xQOcG-00000000iBc-1ADI for linux-arm-kernel@lists.infradead.org; Mon, 09 Nov 2026 12:36:53 +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 217B11476; Mon, 9 Nov 2026 04:36:46 -0800 (PST) Received: from LeoBrasDK.cambridge.arm.com (LeoBrasDK.cambridge.arm.com [10.2.212.21]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E073D3F632; Mon, 9 Nov 2026 04:36:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1794227809; bh=UBP2ZQMotIV6KdGg51IlwlZyPK5SoCkTkNpFStNN7gk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uFt9q5EmP8uuPALMSgfayO0dNqoORyBCQdhiZe3CK0taECNUwQhxIWqLhzLTBPWgM 3jgBDN+oV0RLIwow4mH1pcauwWkxyN9pTumuGwFJQrHNgzFw2E3SNVtPux6ES3mZob 02X8lK7uRyzbzi2r9wT5O5j+O+467vIwcDH+vhds= From: Leonardo Bras To: Marc Zyngier Cc: Leonardo Bras , Oliver Upton , Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Mark Rutland , Raghavendra Rao Ananta , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH RESEND v4 0/3] Optimize S2 hugepage splitting, introduce skip-level flags Date: Mon, 9 Nov 2026 12:36:41 +0000 Message-ID: X-Mailer: git-send-email 2.56.0 In-Reply-To: <86y0b528zu.wl-maz@kernel.org> References: <20261106161240.1345126-1-leo.bras@arm.com> <86y0b528zu.wl-maz@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261109_043652_360183_FCB67F14 X-CRM114-Status: GOOD ( 13.30 ) 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=-8.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 Fri, Nov 06, 2026 at 04:57:25PM +0000, Marc Zyngier wrote: > On Fri, 06 Nov 2026 16:12:35 +0000, > Leonardo Bras wrote: > > > > > > While playing with dirty-bit tracking, I decided to take a look on how page > > splitting works. Found out all entries are walked, even though we don't need > > to walk the level-3 entries, as they don't need to be split. > > What's the point of this "RESEND"? Anything different from what you > sent on Sept 30th? Since it is still numbered v4, I assume nothing has > changed... > Hi Marc, That's correct, nothing changed since the previous version. Since it got no feedback since Sept 30th, I decided to resend it in order to maybe get some further reviewing. Thanks! Leo