Re: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)

[William Lee Irwin III <wli@holomorphy.com>]

On Fri, 1 Jun 2007 21:45:15 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:
>> That would have to occur with objects that are repeatedly allocated and 
>> then linked toghether etc. Linking typicallty requires a listhead so its 
>> typically difficult to do zero length objects.

On Fri, Jun 01, 2007 at 09:54:27PM -0700, Andrew Morton wrote:
> Well I can't immediately think of a scenario in which it's likely to occur,
> but we're in the position of trying to prove a negative.
> Poke Bill Irwin - he'll think of something ;)

I've yet to see anyone get quite that creative, but I've not gone fishing
for instances of this. I can think of plenty of places where one could do
something like this in practice, but don't care to give anyone any ideas.


-- wli