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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5903BC6778A for ; Sun, 1 Jul 2018 19:37:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1CDE7258D9 for ; Sun, 1 Jul 2018 19:37:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1CDE7258D9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=nod.at Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752645AbeGAThZ (ORCPT ); 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