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Re: [Nbd] 2.9.25 released

On Wed, Nov 30, 2011 at 07:16:36PM +0100, Goswin von Brederlow wrote:
> Wouter Verhelst <w@...112...> writes:
> > Hi all,
> >
> > I just released 2.9.25. The main change is that TRIM now uses
> > FALLOCATE_FL_PUNCH_HOLE, but there were also a number of minor bugfixes
> > waiting to be released.
> >
> > Get at the usual place.
> >
> > Regards,
> Do you have any documentation on FALLOCATE_FL_PUNCH_HOLE? Doesn't appear
> in the manpage.

Yeah, my mistake.

Basically, it means that if we see a TRIM, then the backend storage gets
the "punch hole" syscall. If you don't want that, then disable TRIM.

The volume of a pizza of thickness a and radius z can be described by
the following formula:

pi zz a

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