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From: Chris Murphy <lists@colorremedies.com>
Date: Thu, 1 Feb 2018 19:09:49 -0700
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Subject: Re: btrfs - kernel warning
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Patrik Ostrihon <patrik.ostrihon@gmail.com>,
        Btrfs BTRFS <linux-btrfs@vger.kernel.org>
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On Thu, Feb 1, 2018 at 6:40 PM, Qu Wenruo <quwenruo.btrfs@gmx.com> wrote:

> Fortunately btrfs-progs provides offline tool to fix it.
> You could use "btrfs rescue fix-device-size <device>" to easily fix it.
> And since it's an offline tool, you need to umount your fs first.
>

This feature first appears in btrfs-progs v4.14.



-- 
Chris Murphy