linux-kernel - Re: [PATCH v5 0/2] ubi: add possibility to skip CRC check for static UBI volumes

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Date:   Mon, 02 Jul 2018 16:49:56 +0300
From:   Artem Bityutskiy <dedekind1@...il.com>
To:     Quentin Schulz <quentin.schulz@...tlin.com>, richard@....at,
        dwmw2@...radead.org, computersforpeace@...il.com,
        boris.brezillon@...tlin.com, marek.vasut@...il.com
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com
Subject: Re: [PATCH v5 0/2] ubi: add possibility to skip CRC check for
 static UBI volumes

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 <artem.bityutskiy@...ux.intel.com>