diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index a8693ed..44982c1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -570,6 +570,20 @@
 
 source "kernel/Kconfig.preempt"
 
+config GUSA
+	def_bool y
+	depends on !SMP
+	help
+	  This enables support for gUSA (general UserSpace Atomicity).
+	  This is the default implementation for both UP and non-ll/sc
+	  CPUs, and is used by the libc, amongst others.
+
+	  For additional information, design information can be found 
+	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
+
+	  This should only be disabled for special cases where alternate
+	  atomicity implementations exist.
+
 endmenu
 
 menu "Boot options"
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index b467280..e0317ed 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -176,7 +176,7 @@
 	jmp	@r1
 	 lds	r0, pr
 work_resched:
-#ifndef CONFIG_PREEMPT
+#if defined(CONFIG_GUSA) && !defined(CONFIG_PREEMPT)
 	! gUSA handling
 	mov.l	@(OFF_SP,r15), r0	! get user space stack pointer
 	mov	r0, r1
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index cd8dae1..b4469992 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -350,7 +350,7 @@
 	unlazy_fpu(prev, task_pt_regs(prev));
 #endif
 
-#ifdef CONFIG_PREEMPT
+#if defined(CONFIG_GUSA) && defined(CONFIG_PREEMPT)
 	{
 		struct pt_regs *regs;
 
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index 0f657d3..2f42442 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -507,6 +507,7 @@
 						ctrl_inw(regs->pc - 4));
 				break;
 		}
+#ifdef CONFIG_GUSA
 	} else {
 		/* gUSA handling */
 		preempt_disable();
@@ -523,6 +524,7 @@
 		}
 
 		preempt_enable_no_resched();
+#endif
 	}
 
 	/* Set up the stack frame */