linux-kernel - Re: [PATCH v3] f2fs: checkpoint disabling

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Date:   Fri, 10 Aug 2018 19:50:28 -0700
From:   Daniel Rosenberg <drosen@...gle.com>
To:     Chao Yu <yuchao0@...wei.com>, Jaegeuk Kim <jaegeuk@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH v3] f2fs: checkpoint disabling

On 08/10/2018 01:40 AM, Chao Yu wrote:
> Hi Daniel,
>
> When filesystem is full, statfs shown abnormally as below:
>
> /dev/zram0       2095104 -17177769548 17179864652    - /mnt/f2fs
>
> I guess it's related to this patch, could you have a look at this?
>
> Thanks,
>
Thanks. It looks like I failed to check if we're running with 
checkpoints disabled inside of update_sit_entry when I updated the 
stats, causing it to underflow. I'll fix that in the next version.