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Re: [PATCH V5] Add support for BTRFS raid5/6 to GRUB

From: Goffredo Baroncelli
Subject: Re: [PATCH V5] Add support for BTRFS raid5/6 to GRUB
Date: Thu, 14 Jun 2018 20:06:08 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0

On 06/14/2018 03:21 PM, Daniel Kiper wrote:
> Hi Goffredo,
> On Sun, Jun 03, 2018 at 08:53:39PM +0200, Goffredo Baroncelli wrote:
>> Hi All,
>> the aim of this patches set is to provide support for a BTRFS raid5/6
>> filesystem in GRUB.
>> The first patch, implements the basic support for raid5/6. I.e this works 
>> when
>> all the disks are present.
>> The next 5 patches, are preparatory ones.
>> The 7th patch implements the raid5 recovery for btrfs (i.e. handling the
>> disappearing of 1 disk).
>> The 8th patch makes the code for handling the raid6 recovery more generic.
>> The last one implements the raid6 recovery for btrfs (i.e. handling the
>> disappearing up to two disks).
>> I tested the code in grub-emu, and it works both with all the disks,
>> and with some disks missing. I checked the crc32 calculated from grub and
>> from linux and these matched. Finally I checked if the support for md raid6
>> still works properly, and it does (with all drives and with up to 2 drives
>> missing)
>> Comments are welcome.
> In general I am happy that you are doing this work. However, I have just
> realized that in some cases you are agreeing with my comments and then
> you do not incorporate the changes which I was asking for. So, I would
> be more happy if you instead of saying OK just do requested changes.

This is not good. I apologize,  If this happened it was a my mistake. 
When I put OK, this means that I agree with your reviews and I incorporate 
Now I am reviewing your old comments 

> Otherwise you lose your and my time. Hence, I would like ask you to
> check carefully all my comments for v4 and v5 (at least), apply all
> requested changes with which you agree and then post v6.
> Sorry for being blunt.
> Daniel

gpg Goffredo Baroncelli <>
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