1 files changed, 15 insertions, 1 deletions

diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 2e58e304b8be..2cccfa5b8ab5 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -167,7 +167,7 @@ extern int can_do_skas(void);
 #endif
 
 /* mem.c */
-extern int create_mem_file(unsigned long len);
+extern int create_mem_file(unsigned long long len);
 
 /* process.c */
 extern unsigned long os_process_pc(int pid);
@@ -199,6 +199,20 @@ extern void forward_pending_sigio(int target);
 extern int start_fork_tramp(void *arg, unsigned long temp_stack,
                             int clone_flags, int (*tramp)(void *));
 
+/* uaccess.c */
+extern unsigned long __do_user_copy(void *to, const void *from, int n,
+                                    void **fault_addr, void **fault_catcher,
+                                    void (*op)(void *to, const void *from,
+                                               int n), int *faulted_out);
+
+/* helper.c */
+extern int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
+                      unsigned long *stack_out);
+extern int run_helper_thread(int (*proc)(void *), void *arg,
+                             unsigned int flags, unsigned long *stack_out,
+                             int stack_order);
+extern int helper_wait(int pid);
+
 #endif
 
 /*