On Sun, Sep 10, 2017 at 09:50:27PM +0200, Sebastian Andrzej Siewior wrote: > On 2017-08-22 23:19:31 [-0700], Christoph Hellwig wrote: > > as part of the reflink feature. These out of place writes are > > a requirement to implement data checksums, as otherwise your data > > and checksum can not be updated atomically. Everything else is > > beyond that at this point is vapourware. We'd have to decided > So using the journal for atomic updates doesn't work then. Which means > fragmentation unavoidable. Well, in theory you could also do data journalling - but in the end out of place writes are probably going to be more efficient, and at least for XFS also area already implemented. -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
