mm: memory-hotplug: enable memory hotplug to handle hugepage

[android-x86/kernel.git] / include / linux / hugetlb.h

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index d1db007..2e02c4e 100644 (file)
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -68,6 +68,7 @@ void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
 int dequeue_hwpoisoned_huge_page(struct page *page);
 bool isolate_huge_page(struct page *page, struct list_head *list);
 void putback_active_hugepage(struct page *page);
+bool is_hugepage_active(struct page *page);
 void copy_huge_page(struct page *dst, struct page *src);
 
 #ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
@@ -138,6 +139,7 @@ static inline int dequeue_hwpoisoned_huge_page(struct page *page)
 
 #define isolate_huge_page(p, l) false
 #define putback_active_hugepage(p)     do {} while (0)
+#define is_hugepage_active(x)  false
 static inline void copy_huge_page(struct page *dst, struct page *src)
 {
 }
@@ -377,6 +379,9 @@ static inline pgoff_t basepage_index(struct page *page)
        return __basepage_index(page);
 }
 
+extern void dissolve_free_huge_pages(unsigned long start_pfn,
+                                    unsigned long end_pfn);
+
 #else  /* CONFIG_HUGETLB_PAGE */
 struct hstate {};
 #define alloc_huge_page_node(h, nid) NULL
@@ -403,6 +408,7 @@ static inline pgoff_t basepage_index(struct page *page)
 {
        return page->index;
 }
+#define dissolve_free_huge_pages(s, e) do {} while (0)
 #endif /* CONFIG_HUGETLB_PAGE */
 
 #endif /* _LINUX_HUGETLB_H */