-#ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size,
- struct mhp_params *params)
-{
- unsigned long start_pfn = start >> PAGE_SHIFT;
- unsigned long nr_pages = size >> PAGE_SHIFT;
- int ret;
-
- /*
- * The page tables were already mapped at boot so if the caller
- * requests a different mapping type then we must change all the
- * pages with __set_memory_prot().
- */
- if (params->pgprot.pgprot != PAGE_KERNEL.pgprot) {
- ret = __set_memory_prot(start, nr_pages, params->pgprot);
- if (ret)
- return ret;
- }
-
- return __add_pages(nid, start_pfn, nr_pages, params);
-}
-
-void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
-{
- unsigned long start_pfn = start >> PAGE_SHIFT;
- unsigned long nr_pages = size >> PAGE_SHIFT;
-
- __remove_pages(start_pfn, nr_pages, altmap);
-}
-#endif
-