unsigned int pages = 0;
for_each_online_pgdat(pgdat)
- pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages;
+ pages += zone_page_state(&pgdat->node_zones[ZONE_HIGHMEM],
+ NR_FREE_PAGES);
return pages;
}
flush_tlb_kernel_range(PKMAP_ADDR(0), PKMAP_ADDR(LAST_PKMAP));
}
+/* Flush all unused kmap mappings in order to remove stray
+ mappings. */
+void kmap_flush_unused(void)
+{
+ spin_lock(&kmap_lock);
+ flush_all_zero_pkmaps();
+ spin_unlock(&kmap_lock);
+}
+
static inline unsigned long map_new_virtual(struct page *page)
{
unsigned long vaddr;