Re: [PATCH 00/23] per device dirty throttling -v8

* Andrew Morton:

> The easy preventive is to mount with data=writeback.  Maybe that should
> have been the default.

The documentation I could find suggests that this may lead to a
security weakness (old data in blocks of a file that was grown just
before the crash leaks to a different user).  XFS overwrites that data
with zeros upon reboot, which tends to irritate users when it happens.

>From this point of view, data=ordered doesn't seem too bad.
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