Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatchin...

[mirror_ubuntu-eoan-kernel.git] / include / linux / ksm.h

diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 161e8164abcf535f30417593b055e3c3c5acf564..e48b1e453ff5109292f7a735b7e4c73a0caf43b9 100644 (file)
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -53,6 +53,8 @@ struct page *ksm_might_need_to_copy(struct page *page,
 
 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 */
 
@@ -86,6 +88,11 @@ static inline void rmap_walk_ksm(struct page *page,
 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 */