diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 6d865d4eade026e94a78e2872bab47dc81715795..53dee8d3cdcc4536bed47a6fa0fdd3fdf0ada6f4 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -311,4 +311,9 @@ extern void os_set_pollfd(int i, int fd);
 extern void os_set_ioignore(void);
 extern void init_irq_signals(int on_sigstack);
 
+/* sigio.c */
+extern void write_sigio_workaround(void);
+extern int add_sigio_fd(int fd, int read);
+extern int ignore_sigio_fd(int fd);
+
 #endif
diff --git a/arch/um/include/sigio.h b/arch/um/include/sigio.h
index 1432fcfb32125e01f922d98bb12127d02e31ee62..fe99ea163c2e68eab0be8e7cecd183132a53e5e1 100644
--- a/arch/um/include/sigio.h
+++ b/arch/um/include/sigio.h
@@ -8,8 +8,6 @@
 
 extern int write_sigio_irq(int fd);
 extern int register_sigio_fd(int fd);
-extern int add_sigio_fd(int fd, int read);
-extern int ignore_sigio_fd(int fd);
 extern void sigio_lock(void);
 extern void sigio_unlock(void);
 
diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h
index a6f1f176cf84ad6e95ced622be62d20879f72a37..992a7e1e0fca9bb3034f3210458feaf4ebaf28d2 100644
--- a/arch/um/include/user_util.h
+++ b/arch/um/include/user_util.h
@@ -58,7 +58,6 @@ extern int attach(int pid);
 extern void kill_child_dead(int pid);
 extern int cont(int pid);
 extern void check_sigio(void);
-extern void write_sigio_workaround(void);
 extern void arch_check_bugs(void);
 extern int cpu_feature(char *what, char *buf, int len);
 extern int arch_handle_signal(int sig, union uml_pt_regs *regs);
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 8458c30a6265464d3a26062ab85c11669606f0f0..ac5afaa0306f4b3023b84d6ea226fe495a5ed0fc 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -8,7 +8,7 @@ clean-files :=
 
 obj-y = config.o exec_kern.o exitcode.o \
 	init_task.o irq.o ksyms.o mem.o physmem.o \
-	process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
+	process_kern.o ptrace.o reboot.o resource.o sigio_kern.o \
 	signal_kern.o smp.o syscall_kern.o sysrq.o \
 	time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o
 
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 73d3d837ed6b41f107b2cc57009c9826dd486f92..c3d56c2935c2cbc75395db9c27574bbaf2b5ab80 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -3,14 +3,15 @@
 # Licensed under the GPL
 #
 
-obj-y = aio.o elf_aux.o file.o helper.o irq.o main.o mem.o process.o signal.o \
-	start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o user_syms.o \
-	util.o drivers/ sys-$(SUBARCH)/
+obj-y = aio.o elf_aux.o file.o helper.o irq.o main.o mem.o process.o sigio.o \
+	signal.o start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o \
+	user_syms.o util.o drivers/ sys-$(SUBARCH)/
 
 obj-$(CONFIG_MODE_SKAS) += skas/
 
 USER_OBJS := aio.o elf_aux.o file.o helper.o irq.o main.o mem.o process.o \
-	signal.o start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o util.o
+	sigio.o signal.o start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o \
+	util.o
 
 elf_aux.o: $(ARCH_DIR)/kernel-offsets.h
 CFLAGS_elf_aux.o += -I$(objtree)/arch/um
diff --git a/arch/um/kernel/sigio_user.c b/arch/um/os-Linux/sigio.c
similarity index 96%
rename from arch/um/kernel/sigio_user.c
rename to arch/um/os-Linux/sigio.c
index 9bef9413cb5d49c9ee848181ac0aa1ac080fff2b..7604c404c4c2f390fe6d360c6ef8ebbfcc4d1c2c 100644
--- a/arch/um/kernel/sigio_user.c
+++ b/arch/um/os-Linux/sigio.c
@@ -20,7 +20,7 @@
 #include "sigio.h"
 #include "os.h"
 
-/* Protected by sigio_lock(), also used by sigio_cleanup, which is an 
+/* Protected by sigio_lock(), also used by sigio_cleanup, which is an
  * exitcall.
  */
 static int write_sigio_pid = -1;
@@ -143,7 +143,7 @@ static void update_thread(void)
 	return;
  fail:
 	/* Critical section start */
-	if(write_sigio_pid != -1) 
+	if(write_sigio_pid != -1)
 		os_kill_process(write_sigio_pid, 1);
 	write_sigio_pid = -1;
 	close(sigio_private[0]);
@@ -160,13 +160,13 @@ int add_sigio_fd(int fd, int read)
 
 	sigio_lock();
 	for(i = 0; i < current_poll.used; i++){
-		if(current_poll.poll[i].fd == fd) 
+		if(current_poll.poll[i].fd == fd)
 			goto out;
 	}
 
 	n = current_poll.used + 1;
 	err = need_poll(n);
-	if(err) 
+	if(err)
 		goto out;
 
 	for(i = 0; i < current_poll.used; i++)
@@ -195,7 +195,7 @@ int ignore_sigio_fd(int fd)
 	}
 	if(i == current_poll.used)
 		goto out;
-	
+
 	err = need_poll(current_poll.used - 1);
 	if(err)
 		goto out;
@@ -216,7 +216,7 @@ int ignore_sigio_fd(int fd)
 	return(err);
 }
 
-static struct pollfd* setup_initial_poll(int fd)
+static struct pollfd *setup_initial_poll(int fd)
 {
 	struct pollfd *p;
 
@@ -256,7 +256,7 @@ void write_sigio_workaround(void)
 	}
 	err = os_pipe(l_sigio_private, 1, 1);
 	if(err < 0){
-		printk("write_sigio_workaround - os_pipe 1 failed, "
+		printk("write_sigio_workaround - os_pipe 2 failed, "
 		       "err = %d\n", -err);
 		goto out_close1;
 	}
@@ -317,7 +317,7 @@ void write_sigio_workaround(void)
 
 void sigio_cleanup(void)
 {
-	if (write_sigio_pid != -1) {
+	if(write_sigio_pid != -1){
 		os_kill_process(write_sigio_pid, 1);
 		write_sigio_pid = -1;
 	}