On Mon, Oct 15, 2018 at 1:31 AM Dave Chinner <david@xxxxxxxxxxxxx> wrote: > > On Fri, Oct 12, 2018 at 09:22:18PM +0100, Filipe Manana wrote: > > On Thu, Oct 11, 2018 at 5:13 AM Darrick J. Wong <darrick.wong@xxxxxxxxxx> wrote: > > > > > > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > > > > > A deduplication data corruption is exposed by fstests generic/505 on > > > XFS. > > > > (and btrfs) > > > > Btw, the generic test I wrote was indeed numbered 505, however it was > > never committed and there's now a generic/505 which has nothing to do > > with deduplication. > > So you should update the changelog to avoid confusion. > > What test is it now? And if it hasn't been committed, are you going > to update it and repost as it clearly had value.... Sorry, I lost track of this. So what was the conclusion of the thread where discussion about this problem started? It wasn't clear to me if a consensus was reached and got lost on that long user space dedupe tools discussion between you and Zygo. The test assumed a fix of rounding down the range and deduping less bytes then requested (which ended up included in 4.19 for btrfs). >From this vfs patch it seems it was decided to return errno -EDADE instead. Is this the final decision? > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx -- Filipe David Manana, “Whether you think you can, or you think you can't — you're right.”