linux-kernel - Re: [PATCH AUTOSEL 4.20 072/117] btrfs: alloc_chunk: fix more DUP stripe size handling

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Message-ID: <20190123143732.GL202535@sasha-vm>
Date:   Wed, 23 Jan 2019 09:37:32 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     Hans van Kranenburg <Hans.van.Kranenburg@...dix.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        David Sterba <dsterba@...e.com>,
        "linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>
Subject: Re: [PATCH AUTOSEL 4.20 072/117] btrfs: alloc_chunk: fix more DUP
 stripe size handling

On Tue, Jan 08, 2019 at 11:52:02PM +0000, Hans van Kranenburg wrote:
>Hi Sasha,
>
>On 1/8/19 8:25 PM, Sasha Levin wrote:
>> From: Hans van Kranenburg <hans.van.kranenburg@...dix.com>
>>
>> [ Upstream commit baf92114c7e6dd6124aa3d506e4bc4b694da3bc3 ]
>>
>> Commit 92e222df7b "btrfs: alloc_chunk: fix DUP stripe size handling"
>> fixed calculating the stripe_size for a new DUP chunk.
>
>That one also ended up as:
>
>4.14-stable
>0136bd7238b2cb8238426af4183ed0b02165c3f9
>
>4.9-stable
>8890bae03f4dba1c2292e5445682b556af4e8f1b
>
>4.4-stable
>97c3e46ef53748278286fc09dcc30b138d6677c4
>
>3.16.57-rc1
>f68f46284a199f6837c1d5b94a6ae979a2cc463c
>
>While hitting the failure condition without adding "crafting" steps to
>make it exactly match the scenario is unlikely, it might be good if we
>just go all the way back with this regression fix?

What do you mean with "all the way back"?

--
Thanks,
Sasha