@@ -31,15 +31,26 @@ inline static int tsl(fl_lock_t* lock)

 	volatile int val;

 #ifdef __i386

-	

+

+#ifdef NOSMP

+	val=0;

+	asm volatile(

+		"  btsl $0, %1 \n\t"

+		" adcl $0, %0 \n\t"

+		: "=q" (val), "=m" (*lock) : "0"(val) : "memory"

+	);

+#else

 	val=1;

 	asm volatile( 

 		" xchg %b0, %1" : "=q" (val), "=m" (*lock) : "0" (val) : "memory"

 	);

+#endif /*NOSMP*/

 #elif defined __sparc

 	asm volatile(

 			"ldstub [%1], %0 \n\t"

+#ifndef NOSMP

 			"membar #StoreStore | #StoreLoad \n\t"

+#endif

 			: "=r"(val) : "r"(lock):"memory"

 	);

 #else

@@ -80,7 +91,9 @@ inline static void release_lock(fl_lock_t* lock)

 	); 

 #elif defined __sparc

 	asm volatile(

+#ifndef NOSMP

 			"membar #LoadStore | #StoreStore \n\t" /*is this really needed?*/

+#endif

 			"stb %%g0, [%0] \n\t"

 			: /*no output*/

 			: "r" (lock)