Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning

Linus Torvalds wrote:
> So for *both* of the above reasons, it's actually stupid to return NULL 
> for a zero-sized allocation. It would be much better to return another 
> pointer that will trap on access. A good candidate might be to return
>
> 	#define BADPTR ((void *)16)
>   

I think this is a good idea in principle, but I wonder if there's any
code which assumes that kmalloc(x) != kmalloc(x) for all non-NULL
returns from kmalloc.

J
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---

• References:
  • [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Srinivasa Ds <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Srinivasa Ds <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Jeremy Fitzhardinge <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Christoph Lameter <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Andrew Morton <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Christoph Lameter <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Andrew Morton <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Christoph Lameter <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Andrew Morton <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Christoph Lameter <[email protected]>
  • Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777 warning
    • From: Linus Torvalds <[email protected]>

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