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 CE669C88E72 for ; Thu, 17 Sep 2026 13:56:10 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:References:Cc:To:From:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=AU8CGgy6Pa5vfZgK02vvr6pONCCFzHgT9ly82BtluUM=; b=cxGkQK0qM/8/h2zeKLlGSc+8zd qPM4CXLmItsD5dVj+4y9TI1mhceAw2MqwJ4YfhY33NKhIbnRXH9SFP5iRVrC+A6bpVh/KKCiagFRh ghMiMz0B40JTX7eNnw7G47Pn2qezS3TY7ba6v/EEeGLqPw82s4eGHRBizEtm8LhB4fK4auXjbacTi +w9u5quoRbOwz/gsAf6rqYmsODcprqr2DTJ1jwRJcGRPqw26VwOEtKfxlpaDKvB6jhUGkGovsXnoE K5DjfODLTCiFFKYUcA+smB54Dx0OWJQ7yom0TVEgEjn7WECzXxEUMr/X/IZoOebGUmF9+HdyuV3Gt dSPJ27GQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7Caq-0000000BTDn-2izn; Thu, 17 Sep 2026 13:56:04 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7Cap-0000000BTDa-0m6M for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2026 13:56:03 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 84CA760052; Thu, 17 Sep 2026 13:56:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DB311F000FF; Thu, 17 Sep 2026 13:55:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789653362; bh=AU8CGgy6Pa5vfZgK02vvr6pONCCFzHgT9ly82BtluUM=; h=Date:Subject:From:To:Cc:References:In-Reply-To; b=f0o1NCLoIaKYvHe6FBZBBPQIdVjNHSj17+boe4ixXC3+KOmFDflYlsRC5fnT5VKxe HiRy4SVb68ngiM7azj5+u6m0xyNju5V08cQfHJi2NV7PnWKPKN0HohbudLio9W316d /edQAOX6ErcG27FlD7aI7nIlFvgogzkRyJF2d47a43MYtpOIbd3z+9IDQOratubN4N ZuFV4D+qsmLiDJtiANyhBpkxPnBMa9HwkwVS+ElI9GOaUk8mXNshPSlsKTwpKcv5iZ W69f14zdA0DevKSl2Y8ooTN16Hqf4yJJ0lXRIWagnyzIQCBiYdtgcfS7LhiSuDGGLp iwWBqDVpHt2jw== Message-ID: Date: Thu, 17 Sep 2026 15:55:55 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 00/10] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory From: "Christophe Leroy (CS GROUP)" To: Wen Jiang , akpm@linux-foundation.org, catalin.marinas@arm.com, linux-mm@kvack.org, urezki@gmail.com, will@kernel.org Cc: Xueyuan.chen21@gmail.com, ajd@linux.ibm.com, anshuman.khandual@arm.com, baohua@kernel.org, david@kernel.org, dev.jain@arm.com, jiangwen6@xiaomi.com, leo.yan@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, rppt@kernel.org, ryan.roberts@arm.com References: <20260917052933.188679-1-jiangwenxiaomi@gmail.com> <493ef264-eab3-4be3-a80e-357f01ae1b37@kernel.org> Content-Language: fr-FR In-Reply-To: <493ef264-eab3-4be3-a80e-357f01ae1b37@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 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 Le 17/09/2026 à 14:17, Christophe Leroy (CS GROUP) a écrit : > Hi, > > Le 17/09/2026 à 07:29, Wen Jiang a écrit : >> From: Wen Jiang >> >> This patchset accelerates ioremap, vmalloc, and vmap when the memory is >> physically fully or partially contiguous. Two techniques are used: >> >> 1. Avoid page table rewalk when setting PTEs/PMDs for multiple memory >>     segments >> 2. Use batched mappings wherever possible in both vmalloc and ARM64 >>     layers >> >> Besides accelerating the mapping path, this also enables large >> mappings (PMD and cont-PTE) for vmap, which are currently not >> supported. > > This series doesn't apply. I tried to apply it on top of v7.2, v7.3-rc3 > and next-20260916 > > Can you tell how to apply it ? Finaly I was able to apply it on top of v7.1 Christophe