mm: numa: Add THP migration for the NUMA working set scanning fault case.

[karo-tx-linux.git] / include / linux / migrate.h

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 91556889adac5ebcef5d916878cc10ce7a943a98..51eac4bdc6067522e98882ca311b24bb17892171 100644 (file)
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -79,6 +79,12 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
 extern int migrate_misplaced_page(struct page *page, int node);
 extern int migrate_misplaced_page(struct page *page, int node);
 extern bool migrate_ratelimited(int node);
+extern int migrate_misplaced_transhuge_page(struct mm_struct *mm,
+                       struct vm_area_struct *vma,
+                       pmd_t *pmd, pmd_t entry,
+                       unsigned long address,
+                       struct page *page, int node);
+
 #else
 static inline int migrate_misplaced_page(struct page *page, int node)
 {
@@ -88,6 +94,15 @@ static inline bool migrate_ratelimited(int node)
 {
        return false;
 }
+
+static inline int migrate_misplaced_transhuge_page(struct mm_struct *mm,
+                       struct vm_area_struct *vma,
+                       pmd_t *pmd, pmd_t entry,
+                       unsigned long address,
+                       struct page *page, int node)
+{
+       return -EAGAIN;
+}
 #endif /* CONFIG_NUMA_BALANCING */
 
 #endif /* _LINUX_MIGRATE_H */