Re: [PATCH 07/10] Remove some of the kmemleak false positives

[Pekka Enberg]

On 7/11/06, Catalin Marinas <catalin.marinas@xxxxxxxxx> wrote:
> @@ -166,6 +166,9 @@ struct platform_device *platform_device_
>         struct platform_object *pa;
>
>         pa = kzalloc(sizeof(struct platform_object) + strlen(name), GFP_KERNEL);
> +       /* kmemleak cannot guess the object type because the block
> +        * size is different from the object size */
> +       memleak_typeid(pa, struct platform_object);

AFAICT, we about 300 kmalloc and kzalloc calls in the kernel that
would need this annotation. If we really can't fix the detector to
deal with these, I would prefer we introduce another memory allocator
function such as:

   void *kzalloc_extra(size_t obj_size, size_t nr_extra, gfp_t flags);

That would do the right thing for memleak too.

                                    Pekka
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