Re: [patch 13/21] deferred and batched addition of faulted-in pages to the LRU

[Andi Kleen]

Andrew Morton <[e-mail]> writes:
>   */
> -void lru_cache_add(struct page * page)
> +static struct pagevec lru_add_pvecs[NR_CPUS];
> +
> +void lru_cache_add(struct page *page)
> +{
> +	struct pagevec *pvec = &lru_add_pvecs[get_cpu()];

This should probably use the linux/percpu.h macros. 
This way it could be more efficient on some architectures and also avoid
potential false sharing.

-Andi