Re: [PATCH -mm 3/6] slub: introduce __kfree_rcu

[Christoph Lameter]

On Tue, 3 Mar 2009, Lai Jiangshan wrote:

> +
> +void __kfree_rcu(const void *x, struct rcu_head *rcu)
> +{
> +	call_rcu(rcu, kfree_rcu_callback);
> +}
> +EXPORT_SYMBOL(__kfree_rcu);
> +

The parameter x is unused why require it? I see that SLOB needs it. Cant
you do a similar trick as in SLUB just calculating the start address of
the object from the rcu address?

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