X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Farch%2Fx86_64%2Flib.c;h=60770f63679495e9b3d991330cd221d309ea7765;hb=HEAD;hp=977cffd1ee283d36c687ab951c53d17f824ace95;hpb=58034f56ab8478b9524c3f09cdf9f93fcb439691;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/arch/x86_64/lib.c b/KernelLand/Kernel/arch/x86_64/lib.c
index 977cffd1..60770f63 100644
--- a/KernelLand/Kernel/arch/x86_64/lib.c
+++ b/KernelLand/Kernel/arch/x86_64/lib.c
@@ -88,6 +88,8 @@ void SHORTLOCK(struct sShortSpinlock *Lock)
 		Lock->Depth ++;
 		return ;
 	}
+	#else
+	ASSERT( !CPU_HAS_LOCK(Lock) );
 	#endif
 	
 	// Wait for another CPU to release
@@ -370,11 +372,11 @@ void *memset(void *__dest, int __val, size_t __count)
 		__asm__ __volatile__ ("rep stosb" : : "D"(__dest),"a"(__val),"c"(__count));
 	else {
 		Uint8   *dst = __dest;
+		size_t	qwords = __count / 8;
+		size_t	trail_bytes = __count % 8;
 
-		__asm__ __volatile__ ("rep stosq" : : "D"(dst),"a"(0),"c"(__count/8));
-		dst += __count & ~7;
-		__count = __count & 7;
-		while( __count-- )
+		__asm__ __volatile__ ("rep stosq" : "=D"(dst) : "D"(dst),"a"(0),"c"(qwords));
+		while( trail_bytes-- )
 		        *dst++ = 0;
 	}
 	return __dest;