Re: [PATCH] xfs: always swap the cow forks when swapping extents

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On Tue, Sep 26, 2017 at 07:44:21AM -0700, Christoph Hellwig wrote:
> On Sat, Sep 23, 2017 at 12:12:08AM -0700, Darrick J. Wong wrote:
> > Since the CoW fork exists as a secondary data structure to the data
> > fork, we must always swap cow forks during swapext.  We also need to
> > swap the extent counts and reset the cowblocks tags.
> 
> Do you have a test that triggers a problem without this? :)

Yes, but it doesn't trigger it reliably, so I've not yet sent it.

--D

> 
> Looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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