linux-kernel - Re: [f2fs-dev] [PATCH] f2fs: flush data when enabling checkpoint back

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Message-ID: <bf5760eb-cdc4-fb41-41cc-03496b6727fe@huawei.com>
Date:   Thu, 28 Jan 2021 15:04:27 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>, <kernel-team@...roid.com>
CC:     <stable@...r.kernel.org>
Subject: Re: [f2fs-dev] [PATCH] f2fs: flush data when enabling checkpoint back

On 2021/1/27 9:44, Jaegeuk Kim wrote:
> During checkpoint=disable period, f2fs bypasses all the synchronous IOs such as
> sync and fsync. So, when enabling it back, we must flush all of them in order
> to keep the data persistent. Otherwise, suddern power-cut right after enabling
> checkpoint will cause data loss.
> 
> Fixes: 4354994f097d ("f2fs: checkpoint disabling")
> Cc: stable@...r.kernel.org
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,