On (02/09/18 14:22), Pavel Tatashin wrote:
[..]
> +/*
> + * If this zone has deferred pages, try to grow it by initializing enough
> + * deferred pages to satisfy the allocation specified by order, rounded up to
> + * the nearest PAGES_PER_SECTION boundary. So we're adding memory in increments
> + * of SECTION_SIZE bytes by initializing struct pages in increments of
> + * PAGES_PER_SECTION * sizeof(struct page) bytes.
> + *
> + * Return true when zone was grown by at least number of pages specified by
> + * order. Otherwise return false.
> + *
> + * Note: We use noinline because this function is needed only during boot, and
> + * it is called from a __ref function _deferred_grow_zone. This way we are
> + * making sure that it is not inlined into permanent text section.
> + */
> +static noinline bool __init
> +deferred_grow_zone(struct zone *zone, unsigned int order)
> +{
> + int zid = zone_idx(zone);
> + int nid = zone->node;
^^^^^^^^^
Should be CONFIG_NUMA dependent
struct zone {
...
#ifdef CONFIG_NUMA
int node;
#endif
...
-ss
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