Re: Support for data CRC

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On 2017-08-21 22:51:36 [-0700], Christoph Hellwig wrote:
> On Tue, Aug 22, 2017 at 09:02:32AM +1000, Dave Chinner wrote:
> > On Mon, Aug 21, 2017 at 09:04:15PM +0200, Sebastian Andrzej Siewior wrote:
> > > Hi,
> > > 
> > > my understanding is that only metadata is protected by CRC in the new
> > > on-disk format. Are there any plans to also protect data?
> > 
> > Not in XFS.
> 
> I had at least some customer interest in it, although not in the short
> term.  Now that we have reflink we can do the required copy on write
> mechanisms, but I've not done any more detailed analysis of potential
> implementations yet.

copy on write. So the data crc is dead / not possible / not wanted or
part of copy on write?

Sebastian
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