Re: [PATCH v2 3/3] mm/slub: Use percpu partial free counter

[Shu Ming <sming56@xxxxxxxxx>]

On Mon, Aug 10, 2020 at 8:22 PM Xunlei Pang <xlpang@xxxxxxxxxxxxxxxxx> wrote:

>  static inline void
> @@ -2429,12 +2439,12 @@ static unsigned long partial_counter(struct kmem_cache_node *n,
>         unsigned long ret = 0;
>
>         if (item == PARTIAL_FREE) {
> -               ret = atomic_long_read(&n->partial_free_objs);
> +               ret = get_partial_free(n);
>         } else if (item == PARTIAL_TOTAL) {
>                 ret = atomic_long_read(&n->partial_total_objs);
>         } else if (item == PARTIAL_INUSE) {
>                 ret = atomic_long_read(&n->partial_total_objs) -
> -               atomic_long_read(&n->partial_free_objs);
> +                               get_partial_free(n);

Is it "ret = get_partial_free(n);" above?


>                 if ((long)ret < 0)
>                         ret = 0;
>         }