Re: Shutdown filesystem when a thin pool become full

[Gionatan Danti <g.danti@assyoma.it>]

Il 20-06-2017 19:02 Brian Foster ha scritto:
> 
> ISTM you might as well write something in userspace that receives a
> notification from device-mapper and shuts down or remounts the fs if 
> the
> volume has gone inactive or hit a watermark. I don't think we'd bury
> anything in XFS that cuts off and then resumes operations based on
> underlying device errors like that. That sounds like a very crude
> approach with a narrow use case.

Absolutely, crude & ugly...

> 
> That said, I don't think I'd be opposed to something in XFS that
> (optionally) shutdown the fs in response to a similar dm notification
> provided we know with certainty that the underlying device is inactive
> (and that it can be accomplished relatively cleanly).
> 

This would be a much better approach. Any chances to get it implemented?
About your patches, I really like that they addresses the fallocate 
propagation issue. Are they a work in progress? Any chances to have them 
shipping in mainline kernel?

Thanks.

-- 
Danti Gionatan
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