linux-kernel - Re: SLUB: Return ZERO_SIZE

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Message-ID: <84144f020706040808t4882f961t80b8d8eb145bfa50@mail.gmail.com>
Date:	Mon, 4 Jun 2007 18:08:25 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Christoph Lameter" <clameter@....com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	jeremy@...p.org
Subject: Re: SLUB: Return ZERO_SIZE_PTR for kmalloc(0)

On Fri, 1 Jun 2007, Andrew Morton wrote:
> > They are different instances which happen to have the same length (zero).

On 6/2/07, Christoph Lameter <clameter@....com> wrote:
> I guess one could use the slab allocators as a type of reservation
> ticket generator with zero sized objects. Hmmm.... But is that really a
> useful thing to do?

Can someone remind me why we can't do what mm/slab.c does for
zero-size allocations in slub too?
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