1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index c270fa68a32b..f710d32291e8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -213,6 +213,10 @@ struct vm_fault {
                                          * is set (which is also implied by
                                          * VM_FAULT_ERROR).
                                          */
+        /* for ->map_pages() only */
+        pgoff_t max_pgoff;              /* map pages for offset from pgoff till
+                                         * max_pgoff inclusive */
+        pte_t *pte;                     /* pte entry associated with ->pgoff */
 };
 
 /*
@@ -224,6 +228,7 @@ struct vm_operations_struct {
         void (*open)(struct vm_area_struct * area);
         void (*close)(struct vm_area_struct * area);
         int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf);
+        void (*map_pages)(struct vm_area_struct *vma, struct vm_fault *vmf);
 
         /* notification that a previously read-only page is about to become
          * writable, if an error is returned it will cause a SIGBUS */
@@ -584,6 +589,9 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
                 pte = pte_mkwrite(pte);
         return pte;
 }
+
+void do_set_pte(struct vm_area_struct *vma, unsigned long address,
+                struct page *page, pte_t *pte, bool write, bool anon);
 #endif
 
 /*