Re: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)

[Rene Herman <rene.herman@gmail.com>]

On 06/05/2007 02:07 PM, John Anthony Kazos Jr. wrote:

> The name says exactly what it is. It's not at all dreadful. If we're going 
> to return a special value in the zero-size case (and in only that case) as 
> a valid pointer instead of actually allocating one byte and treating it as 
> zero, what we have is...a zero-size pointer.

No, what we have is a sizeof(pointer) sized pointer pointing to an object of 
size zero. ZERO_SIZE_PTR is butt-ugly. With a really ugly butt.

Rene.

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