Re: RFC: PERCPU_LIST to fix PR kern/52515

[Edgar Fuß]

>  struct psref {
> -     LIST_ENTRY(psref)               psref_entry;
> +     SLIST_ENTRY(psref)              psref_entry;
> +     /* To keep ABI with LIST_ENTRY(psref) version. */
> +     void                            *psref_unused0;
Isn't it somewhat fishy to manally pad this, knowing how big a [S]LIST_ENTRY 
is? Wouldn't it be cleaner to use a union?