struct page *homecache_alloc_pages_node(int nid, gfp_t gfp_mask,
unsigned int order, int home)
{
struct page *page;
BUG_ON(gfp_mask & __GFP_HIGHMEM); /* must be lowmem */
page = alloc_pages_node(nid, gfp_mask, order);
if (page)
homecache_change_page_home(page, order, home);
return page;
}
void __homecache_free_pages(struct page *page, unsigned int order)
{
if (put_page_testzero(page)) {
homecache_change_page_home(page, order, PAGE_HOME_HASH);
if (order == 0) {
free_hot_cold_page(page, false);
} else {
init_page_count(page);
__free_pages(page, order);
}
}
}
void homecache_free_pages(unsigned long addr, unsigned int order)
{
struct page *page;
if (addr == 0)
return;
VM_BUG_ON(!virt_addr_valid((void *)addr));
page = virt_to_page((void *)addr);
if (put_page_testzero(page)) {
int pages = (1 << order);
homecache_change_page_home(page, order, initial_page_home());
while (pages--)
__free_page(page++);
}
}