[dm-devel] trouble with generic/081

[Christoph Hellwig]

On Fri, Jan 06, 2017 at 09:46:00AM +1100, Dave Chinner wrote:
> And my 2c worth on the "lvm unmounting filesystems on error" - stop
> it, now. It's the wrong thing to do, and it makes it impossible for
> filesystems to handle the error and recover gracefully when
> possible.

It's causing way more harm than it helps due to the namespace
implications.  And we'll have to fix it in the FS for real because
other storage can run out of space as well.