From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com ([192.55.52.43]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fZzDd-0000yV-Nn for linux-mtd@lists.infradead.org; Mon, 02 Jul 2018 13:50:45 +0000 Message-ID: <1530539396.469.98.camel@gmail.com> Subject: Re: [PATCH v5 0/2] ubi: add possibility to skip CRC check for static UBI volumes From: Artem Bityutskiy Reply-To: dedekind1@gmail.com To: Quentin Schulz , richard@nod.at, dwmw2@infradead.org, computersforpeace@gmail.com, boris.brezillon@bootlin.com, marek.vasut@gmail.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com Date: Mon, 02 Jul 2018 16:49:56 +0300 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 2018-07-02 at 11:43 +0200, Quentin Schulz wrote: > 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. > > mtd-utils patches are already merged. See: > http://git.infradead.org/mtd-utils.git/commit/9095d213f536aec0f3c37f6666177f3b907afde7 > http://git.infradead.org/mtd-utils.git/commit/7b4a65a27d2621b58c634d02c6a068ed9562383c > http://git.infradead.org/mtd-utils.git/commit/5e9bc0daa41d84ce5de81c4a1665d65f51893c10 > http://git.infradead.org/mtd-utils.git/commit/8ba21ab75b41a1f9a6e27eed3ea80c9829669c5a For the whole patch-set, Reviewed-by: Artem Bityutskiy