void rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc);
void ksm_migrate_page(struct page *newpage, struct page *oldpage);
+bool reuse_ksm_page(struct page *page,
+ struct vm_area_struct *vma, unsigned long address);
#else /* !CONFIG_KSM */
static inline void ksm_migrate_page(struct page *newpage, struct page *oldpage)
{
}
+static inline bool reuse_ksm_page(struct page *page,
+ struct vm_area_struct *vma, unsigned long address)
+{
+ return false;
+}
#endif /* CONFIG_MMU */
#endif /* !CONFIG_KSM */