Received: by 2002:ac0:a581:0:0:0:0:0 with SMTP id m1-v6csp3112936imm; Sun, 1 Jul 2018 12:39:07 -0700 (PDT) X-Google-Smtp-Source: ADUXVKIchVOXhbx4CKH+aekPvtmwVuoq4unqD69gx4DYez65jO0X/kUy5gshoLAakWQiqphOsHWM X-Received: by 2002:a17:902:6b86:: with SMTP id p6-v6mr23205013plk.75.1530473947482; Sun, 01 Jul 2018 12:39:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1530473947; cv=none; d=google.com; s=arc-20160816; b=gy11Sidc3ck4wb0yorxFAuSOM1yX8AlgydQDNughPHOcWkhpHFgdQApD7IoxTyKcCQ HE2wipatazIeIt5mGaww2VqHvz++nCzkqTNIVyO0i1GXxX1eQzDgm6tUl0mAdI2k6+6d cZ3LUbOVxJj2FcspbgIa2BsQD5UKbj/y4XFCnvzmT6l4PKiKyuraph6noqxQgoWcUbxb 88TSQW1eBvvt//p0rbtL3Oik2pOIZQnNyX7jM2xuYX2z40ewouXBKYiwSEuPgAvCzTCV knEYAg4/OspL5w4hONhHE+rz+iALY/LY/3pIODt3XhP/S2VmzSVz27Gb1/fx8StnAVZ9 M2Yg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=X7bfrIb+Qo0KUCeAzXHwu3AWxfFl/TpYk5IauZn2Phw=; b=PC1vWWFk3G5Bb54XWM4QvAEuGmtpT/4ZvWIU6x2rXmpqRvN0ndxjRuK8YjeDfwkPUC P7JllZuAHeUFw90u/vXcJWyUV9ryp/hmiqLaY93Qi/0AaQ/47/RwIJwX4o4DdnOZ2ukp cbP9VzqDRvWJWZOxxwezPjloVsdr5xSrmSmhufMVSntCY1pvAiTKUxq9S0C3URpKNixy GTFp+TDNux14DshCfuTXH+YYXdaWMyA8oMMe54Xl32vFoWglkXPARt2tD1U8AD2GKCcI OTYznWh3ErscRmeNsCcjBlIETcq1uWqRpLgCrPCLRSjrrAjSpiF/aRubCan+9dTNPCHq HbwQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o6-v6si6509448pgp.631.2018.07.01.12.38.53; Sun, 01 Jul 2018 12:39:07 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752636AbeGAThZ (ORCPT + 99 others); Sun, 1 Jul 2018 15:37:25 -0400 Received: from lithops.sigma-star.at ([195.201.40.130]:33648 "EHLO lithops.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752424AbeGAThW (ORCPT ); Sun, 1 Jul 2018 15:37:22 -0400 Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 86DE56093334; Sun, 1 Jul 2018 21:37:21 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id r30uedKC4d0p; Sun, 1 Jul 2018 21:37:21 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 4B8666093333; Sun, 1 Jul 2018 21:37:21 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id kLTu94MKGyZz; Sun, 1 Jul 2018 21:37:21 +0200 (CEST) Received: from blindfold.localnet (213-47-184-186.cable.dynamic.surfer.at [213.47.184.186]) by lithops.sigma-star.at (Postfix) with ESMTPSA id 2FE2C6093322; Sun, 1 Jul 2018 21:37:21 +0200 (CEST) From: Richard Weinberger To: Quentin Schulz Cc: dedekind1@gmail.com, dwmw2@infradead.org, computersforpeace@gmail.com, boris.brezillon@bootlin.com, marek.vasut@gmail.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com Subject: Re: [PATCH v3 1/2] ubi: provide a way to skip CRC checks Date: Sun, 01 Jul 2018 21:37:20 +0200 Message-ID: <13338670.5gFP9PctP3@blindfold> In-Reply-To: <3f9cef553d4f5da3fe2d76113d79ada1f0fe5224.1530169759.git-series.quentin.schulz@bootlin.com> References: <3f9cef553d4f5da3fe2d76113d79ada1f0fe5224.1530169759.git-series.quentin.schulz@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Donnerstag, 28. Juni 2018, 09:40:52 CEST schrieb Quentin Schulz: > Some users of static UBI volumes implement their own integrity check, > thus making the volume CRC check done at open time useless. For > instance, this is the case when one use the ubiblock + dm-verity + > squashfs combination, where dm-verity already checks integrity of the > block device but this time at the block granularity instead of verifying > the whole volume. > > Skipping this test drastically improves the boot-time. > > Suggested-by: Boris Brezillon > Signed-off-by: Quentin Schulz > Reviewed-by: Boris Brezillon Reviewed-by: Richard Weinberger Thanks, //richard