{
}
-static bool need_activate_page_drain(int cpu)
-{
- return false;
-}
-
void activate_page(struct page *page)
{
struct zone *zone = page_zone(page);
put_cpu();
}
+#ifdef CONFIG_SMP
+
+static DEFINE_PER_CPU(struct work_struct, lru_add_drain_work);
+
static void lru_add_drain_per_cpu(struct work_struct *dummy)
{
lru_add_drain();
}
-static DEFINE_PER_CPU(struct work_struct, lru_add_drain_work);
-
/*
* Doesn't need any cpu hotplug locking because we do rely on per-cpu
* kworkers being shut down before our page_alloc_cpu_dead callback is
mutex_unlock(&lock);
}
+#else
+void lru_add_drain_all(void)
+{
+ lru_add_drain();
+}
+#endif
/**
* release_pages - batched put_page()
if (is_huge_zero_page(page))
continue;
- /* Device public page can not be huge page */
- if (is_device_public_page(page)) {
+ if (is_zone_device_page(page)) {
if (locked_pgdat) {
spin_unlock_irqrestore(&locked_pgdat->lru_lock,
flags);
locked_pgdat = NULL;
}
- put_devmap_managed_page(page);
- continue;
+ /*
+ * ZONE_DEVICE pages that return 'false' from
+ * put_devmap_managed_page() do not require special
+ * processing, and instead, expect a call to
+ * put_page_testzero().
+ */
+ if (put_devmap_managed_page(page))
+ continue;
}
page = compound_head(page);