On Sat, 2005-02-26 at 22:26, Robin Holt wrote:
> Tony,
>
> This patch is simple but necessary for large numa configurations.
> Index: linux-2.6/include/asm-ia64/pgalloc.h
> ===================================================================
> --- linux-2.6.orig/include/asm-ia64/pgalloc.h 2005-02-25 14:40:02.208212833
> -0600
> +++ linux-2.6/include/asm-ia64/pgalloc.h 2005-02-25 15:10:32.929665721
> -0600
> @@ -49,6 +49,16 @@
> static inline void
> pgtable_quicklist_free (void *pgtable_entry)
> {
> +#ifdef CONFIG_NUMA
> + int pg_node;
> +
> + pg_node = page_zone(virt_to_page(pgtable_entry))->zone_pgdat->node_id;
Maybe you could use the macro page_to_nid
> + if (pg_node != numa_node_id()) {
will put an unlikely here better?
> + free_page((unsigned long) pgtable_entry);
> + return;
> + }
> +#endif
> +
> preempt_disable();
> *(unsigned long *)pgtable_entry = (unsigned long)
> local_cpu_data->pgtable_quicklist;
> local_cpu_data->pgtable_quicklist = (unsigned long *) pgtable_entry;
> -
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