diff -drupN a/include/linux/mm.h b/include/linux/mm.h
--- a/include/linux/mm.h	2018-08-06 17:23:04.000000000 +0300
+++ b/include/linux/mm.h	2022-06-12 05:28:14.000000000 +0300
@@ -1143,6 +1143,7 @@ extern void pagefault_out_of_memory(void
 extern void show_free_areas(unsigned int flags);
 extern bool skip_free_areas_node(unsigned int flags, int nid);
 
+void shmem_set_file(struct vm_area_struct *vma, struct file *file);
 int shmem_zero_setup(struct vm_area_struct *);
 #ifdef CONFIG_SHMEM
 bool shmem_mapping(struct address_space *mapping);
@@ -1966,7 +1967,7 @@ static inline int vma_adjust(struct vm_a
 extern struct vm_area_struct *vma_merge(struct mm_struct *,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t,
-	struct mempolicy *, struct vm_userfaultfd_ctx);
+	struct mempolicy *, struct vm_userfaultfd_ctx, const char __user *);
 extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
 extern int split_vma(struct mm_struct *,
 	struct vm_area_struct *, unsigned long addr, int new_below);