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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36B79E64000 for ; Thu, 21 Nov 2024 18:06:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 924EE6B0085; Thu, 21 Nov 2024 13:06:22 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 8D3D16B0088; Thu, 21 Nov 2024 13:06:22 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7C37D6B0089; Thu, 21 Nov 2024 13:06:22 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 60BB26B0085 for ; Thu, 21 Nov 2024 13:06:22 -0500 (EST) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id BFEB240697 for ; Thu, 21 Nov 2024 18:06:21 +0000 (UTC) X-FDA: 82810881258.29.C79042F Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf19.hostedemail.com (Postfix) with ESMTP id 8D9CF1A001F for ; Thu, 21 Nov 2024 18:05:13 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=HOCtBxiA; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf19.hostedemail.com: domain of kbusch@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=kbusch@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1732212312; a=rsa-sha256; cv=none; b=X0eXOxMnzm5/zhMsIOFDQFda34M1GyVCkVd40+PgnrfkU6zXhluQx2V5HT8Bsw2sCtgike kawt2pkreixU9483x556XqmazzYvwFhmKYzx6y4QO4xhKuYSujW6NZ+RBqZVp24d6IZdVg T1VfFRO7qCJRrXt4F8BpVVoILyITIAs= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=HOCtBxiA; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf19.hostedemail.com: domain of kbusch@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=kbusch@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1732212312; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=CoRC65t5X+4YtODRNdzo14wAEbCnOUtoU7iP3Az4Bwc=; b=2xNS4V6fT9rvc413iD+MtagElU4EsHyXE8d+RdetOly8NX0vpIgh/+nMwdBF0Akf5LafJB CRP8/LtvmJ8PinCIFHfA30I8cqsjSUgZjvpicGen3s+OsOm/z7btfR2fLxNh+WOAVR0pc0 E7210zdYiHV4H0Bb6iN2ADXIlfLjRiE= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 26FF35C587A; Thu, 21 Nov 2024 18:05:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E5B73C4CECC; Thu, 21 Nov 2024 18:06:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732212378; bh=CoRC65t5X+4YtODRNdzo14wAEbCnOUtoU7iP3Az4Bwc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HOCtBxiAtXiI5NSxPAWT1z1cuvghWic2v66iIRwReSVnhMIM5cA9bVYQ1cB+CD06H gItBBnjEQ2mqL0ULwmA6Ynwu5UMI90sfWG2RW9qlaZ/JHBFzpVhfA99dlpsXgatwHZ lMKxODGc34GUpFgLqtKyNfTVDWaxndRjKtBr+9R7TVKe9QfzsD6xngXHp9NBB4T6jc eSGyuC/dz9Ex0xZYOQ2fs25++CIvHzYutLBundzXzZEeLMEDeV27grG1BEn5R554aP xLNHTTpChH/8SnpNl6Y8NQDow+aq1i04Q+5eNdRvztn1H0SzG6Et+LJzlTbg7/VXj8 D0l1+jhVf6xJw== Date: Thu, 21 Nov 2024 11:06:15 -0700 From: Keith Busch To: Brian Johannesmeyer Cc: Christoph Hellwig , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, Raphael Isemann , Cristiano Giuffrida , Herbert Bos , Greg KH Subject: Re: [RFC v2 0/2] dmapool: Mitigate device-controllable mem. corruption Message-ID: References: <20241119205529.3871048-1-bjohannesmeyer@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: 8D9CF1A001F X-Rspamd-Server: rspam11 X-Stat-Signature: tks67z83j7mf4gpizcretae36gmtdrt8 X-HE-Tag: 1732212313-569531 X-HE-Meta: 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 5mYWCepj qyo0wTcspnwvadMlalZornmcxZeuDjnFEW5yGZI0tgMV3aoo+ixvnPcLBcZK639HXuHT0Lt7RkhApDElZxEy1GIl76o4hJVm9yIJWeo5Oug5lKOg4SkS4L3S2Gf9rS0eggCSzEjKhq4MZGTGygzUFyCm3z5bxp51bfBWD/Spj0X+RvUXymgwDmwlwqzdvLUFzuUAUX3JMuYxDO1Uwlq/EdD1Lsg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Nov 21, 2024 at 10:31:11AM -0700, Brian Johannesmeyer wrote: > **With the submitted patches applied AND using a maple tree to improve > the performance of vaddr-to-block translations:** If you have the time, could you compare with using xarray instead?