Re: [PATCH v9 04/15] x86/sgx: Implement basic EPC misc cgroup functionality

[Michal Koutný]

On Mon, Feb 05, 2024 at 01:06:27PM -0800, Haitao Huang <haitao.huang@xxxxxxxxxxxxxxx> wrote:
> +static int sgx_epc_cgroup_alloc(struct misc_cg *cg);
> +
> +const struct misc_res_ops sgx_epc_cgroup_ops = {
> +	.alloc = sgx_epc_cgroup_alloc,
> +	.free = sgx_epc_cgroup_free,
> +};
> +
> +static void sgx_epc_misc_init(struct misc_cg *cg, struct sgx_epc_cgroup *epc_cg)
> +{
> +	cg->res[MISC_CG_RES_SGX_EPC].priv = epc_cg;
> +	epc_cg->cg = cg;
> +}

This is a possibly a nit pick but I share it here for consideration.

Would it be more prudent to have the signature like
  alloc(struct misc_res *res, struct misc_cg *cg)
so that implementations are free of the assumption of how cg and res are
stored?


Thanks,
Michal

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