Re: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)

From: John Anthony Kazos Jr.
Date: Fri Jun 01 2007 - 22:21:52 EST


> > > + * 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.

Ah, sorry then. I just saw this, and remembered a rather contrary
discussion about it quite a time ago. Excellent then.
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