Re: [PATCH v30 12/20] x86/sgx: Add a page reclaimer

[Sean Christopherson]

On Fri, May 15, 2020 at 03:44:02AM +0300, Jarkko Sakkinen wrote:
> +static void sgx_reclaimer_write(struct sgx_epc_page *epc_page,
> +                             struct sgx_backing *backing)
> +{
> +     struct sgx_encl_page *encl_page = epc_page->owner;
> +     struct sgx_encl *encl = encl_page->encl;
> +     struct sgx_backing secs_backing;
> +     int ret;
> +
> +     mutex_lock(&encl->lock);
> +
> +     if (atomic_read(&encl->flags) & SGX_ENCL_DEAD) {
> +             ret = __eremove(sgx_epc_addr(epc_page));
> +             ENCLS_WARN(ret, "EREMOVE returned %d\n");

The " returned %d\n" is unnecessary and leads to a bad message, ENCLS_WARN
handles the message and formatting, i.e. this should simply be:

                ENCLS_WARN(ret, "EREMOVE");

> +     } else {
> +             sgx_encl_ewb(epc_page, backing);
> +     }
> +
> +     encl_page->epc_page = NULL;
> +     encl->secs_child_cnt--;