[LTP] [PATCH 2/2] fallocate05: Deallocate whole file on bcachefs

[Li Wang]

On Fri, Sep 6, 2024 at 6:18 PM Kent Overstreet <kent.overstreet@linux.dev>
wrote:

> On Fri, Sep 06, 2024 at 10:02:00AM GMT, Petr Vorel wrote:
> > Hi Martin, all,
> >
> > [ Cc Kent and Bcachefs ML ]
> >
> > > The default deallocation size is likely too small for bcachefs
> > > to actually release the blocks. Since it is also a copy-on-write
> > > filesystem, deallocated the whole file like on Btrfs.
> >
> > Make sense.
> > Reviewed-by: Petr Vorel <pvorel@suse.cz>
>
> I haven't looked at this specific test, but one thing that we run into
> with the weird CoW behaviour tests in xfstests is that bcachefs btree
> nodes are 256k by default - you're going to see weird effects from that
> if tests are looking at disk usage.
>

Thank you. Patch merged.


-- 
Regards,
Li Wang