Re: [PATCH] btrfs-progs: hide block group tree behind experimental feature

From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: dsterba@suse.cz, Qu Wenruo <wqu@suse.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs-progs: hide block group tree behind experimental feature
Date: Thu, 22 Sep 2022 06:20:25 +0800	[thread overview]
Message-ID: <ecd14905-6ff1-3d26-7354-93631684fa0c@gmx.com> (raw)
In-Reply-To: <20220921140611.GG32411@twin.jikos.cz>

On 2022/9/21 22:06, David Sterba wrote:
> On Mon, Sep 12, 2022 at 11:12:01AM +0800, Qu Wenruo wrote:
>> The block group tree doesn't yet have full bi-directional conversion
>> support from btrfstune, and it seems we may want one or two release
>> cycles to rule out some extra bugs before really releasing the progs
>> support.
>>
>> This patch will hide the block group tree feature behind experimental
>> flag for the following tools:
>>
>> - btrfstune
>>    "-b" option to convert to bg tree.
>>
>> - mkfs.btrfs
>>    hide "block-group-tree" feature from both -O (the new default position
>>    for all features) and -R (the old, soon to be deprecated one).
>
> The block group tree is going to 6.1, so the progs support will be
> experimental in 6.0 and enabled no later than 6.1. It might be enabled
> earlier so we can use the normal build in testing.

Personally speaking, I'd hope bg tree would be hidden behind
experimental until the bi-directional convert is implemented.

(AKA, I should finish the remaining part of the btrfstune for bg tree)

Thanks,
Qu