Re: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)

[Christoph Lameter]

On Fri, 1 Jun 2007, John Anthony Kazos Jr. wrote:

> > +	 * The behavior for zero sized allocs changes. We no longer
> > +	 * allocate memory but return ZERO_SIZE_PTR.
> > +	 * WARN so that people can review and fix their code.
> 
> I don't see why people have so much opposition to zero-size memory 
> allocations. There's all sorts of situations where you want a resizeable 
> array that may have zero objects, especially in these days of 
> hotpluggability.

In case you have not read the description to the end: This patch does 
exactly what you want and legitimizes zero size object use. The warning 
will be remove before 2.6.22 is released.

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