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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B796C433FE for ; Mon, 17 Oct 2022 21:11:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230171AbiJQVLJ (ORCPT ); Mon, 17 Oct 2022 17:11:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230158AbiJQVK6 (ORCPT ); Mon, 17 Oct 2022 17:10:58 -0400 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8692AF00A; Mon, 17 Oct 2022 14:10:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Z3pkrpoNtemAA6Dij905toPpE7DXlppB3Jc77wbOPXw=; b=GLF4tr2xE+xBE4DRFwh6I99tS0 qazhqxI1fOWNaJlxdRPy85yCZ6n77R2gHxFhhO3+Dgi9RKgwChx4c74mHH4ACWN++BQQK6v/6mNVQ +Yh5WrOAZ6Ln43O6U/svfz2dILNchvTSkZy2Spr3Fz9tyq6awX8jQjSISYFfCgtdNWB35VuvDhty/ plsCIxWhby4J5Ok8qNF+30cxPmdc6o+3EY1AaPnSqE1KztPdD3ABFgZ02AyhaaoWJcSxHAZoElrEb GNXmZX9Nq9vAhsPiQUWl1uuYMbOgF0YFcrfcbE/SV1oPycQBEFQTnuQvhyoSt0QjF0xAW+JccS4db 0kdk1U/w==; Received: from [179.113.159.85] (helo=[192.168.1.60]) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim) id 1okXNm-000cOp-Ew; Mon, 17 Oct 2022 23:10:46 +0200 Message-ID: Date: Mon, 17 Oct 2022 18:10:31 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.2 Subject: Re: [PATCH] pstore: migrate to crypto acomp interface (take 2) Content-Language: en-US To: Ard Biesheuvel , Kees Cook Cc: Anton Vorontsov , Colin Cross , Tony Luck , linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org References: <20221006234138.1835739-1-keescook@chromium.org> <191ec24d-35d4-e4e5-85f7-d7301984e647@igalia.com> <202210171100.5BAC4A5CC8@keescook> <202210171227.35ED875219@keescook> <202210171237.DF5D4A3FD7@keescook> <202210171307.32A5D9C07@keescook> <202210171333.309A3D9@keescook> From: "Guilherme G. Piccoli" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17/10/2022 18:01, Ard Biesheuvel wrote: > [...] > > In summary, we're better off sticking with the legacy comp interface, > but unfortunately, due to the way that has been plumbed into the > scomp/acomp with scatterlists version, that doesn't really help us get > rid of the memory overhead. > Out of curiosity, do you have a number here, like X kilobytes per active CPU?