mm: introduce page reference manipulation functions

[mirror_ubuntu-zesty-kernel.git] / mm / memory_hotplug.c

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index c832ef3565cc87e277084ca99702eb19f477c693..e62aa078f5c94172d100f8c1ad958d95f8a7c58e 100644 (file)
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -167,7 +167,7 @@ void get_page_bootmem(unsigned long info,  struct page *page,
        page->lru.next = (struct list_head *) type;
        SetPagePrivate(page);
        set_page_private(page, info);
-       atomic_inc(&page->_count);
+       page_ref_inc(page);
 }
 
 void put_page_bootmem(struct page *page)
@@ -178,7 +178,7 @@ void put_page_bootmem(struct page *page)
        BUG_ON(type < MEMORY_HOTPLUG_MIN_BOOTMEM_TYPE ||
               type > MEMORY_HOTPLUG_MAX_BOOTMEM_TYPE);
 
-       if (atomic_dec_return(&page->_count) == 1) {
+       if (page_ref_dec_return(page) == 1) {
                ClearPagePrivate(page);
                set_page_private(page, 0);
                INIT_LIST_HEAD(&page->lru);