linux-ext4 - fsync() errors is unsafe and risks data loss

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Message-ID: <6ebd2b53-f5bb-bc88-d477-ec0a719a2081@commandprompt.com>
Date:   Tue, 10 Apr 2018 09:50:56 -0700
From:   "Joshua D. Drake" <jd@...mandprompt.com>
To:     linux-ext4@...r.kernel.org
Subject: fsync() errors is unsafe and risks data loss

-ext4,

If this is not the appropriate list please point me in the right 
direction. I am a PostgreSQL contributor and we have come across a 
reliability problem with writes and fsync(). You can see the thread here:

https://www.postgresql.org/message-id/flat/20180401002038.GA2211%40paquier.xyz#20180401002038.GA2211@paquier.xyz

The tl;dr; in the first message doesn't quite describe the problem as we 
started to dig into it further.

Thanks!

JD
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