diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 96f333cd560d..c704851d68b7 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -193,7 +193,7 @@ extern int os_getpid(void);
 extern int os_getpgrp(void);
 
 extern void init_new_thread_signals(void);
-extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr);
+extern int run_kernel_thread(int (*fn)(void *), void *arg, jmp_buf **jmp_ptr);
 
 extern int os_map_memory(void *virt, int fd, unsigned long long off,
 			 unsigned long len, int r, int w, int x);
@@ -206,7 +206,7 @@ extern void os_flush_stdout(void);
 
 /* uaccess.c */
 extern unsigned long __do_user_copy(void *to, const void *from, int n,
-				    void **fault_addr, void **fault_catcher,
+				    void **fault_addr, jmp_buf **fault_catcher,
 				    void (*op)(void *to, const void *from,
 					       int n), int *faulted_out);
 
@@ -240,7 +240,6 @@ extern int set_signals(int enable);
 
 /* trap.c */
 extern void os_fill_handlinfo(struct kern_handlers h);
-extern void do_longjmp(void *p, int val);
 
 /* util.c */
 extern void stack_protections(unsigned long address);
diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h
index 5ef311a1a394..fdfc06b85605 100644
--- a/arch/um/include/um_uaccess.h
+++ b/arch/um/include/um_uaccess.h
@@ -30,6 +30,10 @@
 extern int copy_from_user(void *to, const void __user *from, int n);
 extern int copy_to_user(void __user *to, const void *from, int n);
 
+extern int __do_copy_to_user(void *to, const void *from, int n,
+			     void **fault_addr, jmp_buf **fault_catcher);
+extern void __do_copy(void *to, const void *from, int n);
+
 /*
  * strncpy_from_user: - Copy a NUL terminated string from userspace.
  * @dst:   Destination address, in kernel space.  This buffer must be at
diff --git a/arch/um/include/uml_uaccess.h b/arch/um/include/uml_uaccess.h
deleted file mode 100644
index c0df11d06f5e..000000000000
--- a/arch/um/include/uml_uaccess.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __UML_UACCESS_H__
-#define __UML_UACCESS_H__
-
-extern int __do_copy_to_user(void *to, const void *from, int n,
-			     void **fault_addr, void **fault_catcher);
-void __do_copy(void *to, const void *from, int n);
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 0d260567fd15..25c502617553 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -75,7 +75,7 @@ long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
 
 	err = execve1(file, argv, env);
 	if (!err)
-		do_longjmp(current->thread.exec_buf, 1);
+		UML_LONGJMP(current->thread.exec_buf, 1);
 	return err;
 }
 
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index d2b11f242698..8456397f5f4d 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -17,7 +17,7 @@
 #include "as-layout.h"
 #include "kern.h"
 #include "mem_user.h"
-#include "uml_uaccess.h"
+#include "um_uaccess.h"
 #include "os.h"
 #include "linux/types.h"
 #include "linux/string.h"
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index eac63fb6183c..bd060551e619 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -149,7 +149,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 		   struct uml_pt_regs *regs)
 {
 	struct siginfo si;
-	void *catcher;
+	jmp_buf *catcher;
 	int err;
 	int is_write = FAULT_WRITE(fi);
 	unsigned long address = FAULT_ADDRESS(fi);
@@ -181,7 +181,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 		return 0;
 	else if (catcher != NULL) {
 		current->thread.fault_addr = (void *) address;
-		do_longjmp(catcher, 1);
+		UML_LONGJMP(catcher, 1);
 	}
 	else if (current->thread.fault_addr != NULL)
 		panic("fault_addr set but no fault catcher");
@@ -233,7 +233,7 @@ void relay_signal(int sig, struct uml_pt_regs *regs)
 static void bus_handler(int sig, struct uml_pt_regs *regs)
 {
 	if (current->thread.fault_catcher != NULL)
-		do_longjmp(current->thread.fault_catcher, 1);
+		UML_LONGJMP(current->thread.fault_catcher, 1);
 	else relay_signal(sig, regs);
 }
 
diff --git a/arch/um/kernel/uaccess.c b/arch/um/kernel/uaccess.c
index 054e3de0784e..d7436aacd26f 100644
--- a/arch/um/kernel/uaccess.c
+++ b/arch/um/kernel/uaccess.c
@@ -18,7 +18,7 @@ void __do_copy(void *to, const void *from, int n)
 
 
 int __do_copy_to_user(void *to, const void *from, int n,
-		      void **fault_addr, void **fault_catcher)
+		      void **fault_addr, jmp_buf **fault_catcher)
 {
 	unsigned long fault;
 	int faulted;
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index b2e0d8c4258c..8b57eb3647f5 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -249,7 +249,7 @@ void init_new_thread_signals(void)
 	init_irq_signals(1);
 }
 
-int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr)
+int run_kernel_thread(int (*fn)(void *), void *arg, jmp_buf **jmp_ptr)
 {
 	jmp_buf buf;
 	int n;
diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c
index be8e029f58b4..d3a34ca8a891 100644
--- a/arch/um/os-Linux/trap.c
+++ b/arch/um/os-Linux/trap.c
@@ -22,10 +22,3 @@ void os_fill_handlinfo(struct kern_handlers h)
 	sig_info[SIGVTALRM] = h.timer_handler;
 	sig_info[SIGALRM] = h.timer_handler;
 }
-
-void do_longjmp(void *b, int val)
-{
-	jmp_buf *buf = b;
-
-	UML_LONGJMP(buf, val);
-}
diff --git a/arch/um/os-Linux/uaccess.c b/arch/um/os-Linux/uaccess.c
index bbb73a650370..8d27b6d1df91 100644
--- a/arch/um/os-Linux/uaccess.c
+++ b/arch/um/os-Linux/uaccess.c
@@ -8,7 +8,7 @@
 #include "longjmp.h"
 
 unsigned long __do_user_copy(void *to, const void *from, int n,
-			     void **fault_addr, void **fault_catcher,
+			     void **fault_addr, jmp_buf **fault_catcher,
 			     void (*op)(void *to, const void *from,
 					int n), int *faulted_out)
 {
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index d40eae9ec9a2..78c0599cc80c 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -30,10 +30,10 @@ struct thread_struct {
 	struct pt_regs regs;
 	int singlestep_syscall;
 	void *fault_addr;
-	void *fault_catcher;
+	jmp_buf *fault_catcher;
 	struct task_struct *prev_sched;
 	unsigned long temp_stack;
-	void *exec_buf;
+	jmp_buf *exec_buf;
 	struct arch_thread arch;
 	jmp_buf switch_buf;
 	int mm_count;