Re: [PATCH 25/26] xfs: make it possible to disable fsverity

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On Thu, May 09, 2024 at 08:13:48AM -0700, Christoph Hellwig wrote:
> On Thu, May 09, 2024 at 08:09:55AM -0700, Darrick J. Wong wrote:
> > xfs doesn't do data block checksums.
> > 
> > I already have a dumb python program that basically duplicates fsverity
> > style merkle trees but I was looking forward to sunsetting it... :P
> 
> Well, fsverity as-is is intended for use cases where you care about
> integrity of the file.  For that disabling it really doesn't make
> sense.  If we have other use cases we can probably add a variant
> of fsverity that clearly deals with non-integrity checksums.
> Although just disabling them if they mismatch still feels like a
> somewhat odd usage model.

Yeah, it definitely exists in the same weird grey area of turning off
metadata checksum validation to extract as many files from a busted fs
as can be done.

--D




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