Update.

	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Adjust
	for new mutex implementation.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Likewise
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise.
	Don't use requeue.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise.

25 files changed, 261 insertions, 420 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
index 6e4b077295..c73970d45f 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
@@ -65,8 +65,7 @@ __lll_mutex_lock_wait:
 2:	LOCK
 	cmpxchgl %edx, (%ebx)
 
-	testl	%eax, %eax
-	jne,pn	1b
+	jnz,pn	1b
 
 	popl	%edx
 	popl	%ebx
@@ -144,8 +143,7 @@ __lll_mutex_timedlock_wait:
 	LOCK
 	cmpxchgl %edx, (%ebx)
 
-	testl	%eax, %eax
-	jne	7f
+	jnz	7f
 
 6:	addl	$8, %esp
 	popl	%ebp
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
index 08c6e915b9..d4b61a10c1 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
@@ -46,8 +46,7 @@ pthread_barrier_wait:
 	xorl	%eax, %eax
 	LOCK
 	cmpxchgl %edx, MUTEX(%ebx)
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 	/* One less waiter.  If this was the last one needed wake
 	   everybody.  */
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
index 1049e0f4dd..cdcf6d2914 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
@@ -59,8 +59,7 @@ __pthread_cond_broadcast:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	addl	$wakeup_seq, %ebx
 	movl	total_seq+4-wakeup_seq(%ebx), %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
index d86ee054a9..3a24adf911 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
@@ -58,8 +58,7 @@ __pthread_cond_signal:
 #else
 	cmpxchgl %edx, cond_lock(%edi)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	leal	wakeup_seq(%edi), %ebx
 	movl	total_seq+4(%edi), %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
index 5799d8f862..ca5c1423c0 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
@@ -64,8 +64,7 @@ __pthread_cond_timedwait:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 	/* Store the reference to the mutex.  If there is already a
 	   different value in there this is a bad user bug.  */
@@ -179,8 +178,7 @@ __pthread_cond_timedwait:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	5f
+	jnz	5f
 
 6:	movl	woken_seq(%ebx), %eax
 	movl	woken_seq+4(%ebx), %ecx
@@ -363,8 +361,7 @@ __condvar_tw_cleanup:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	je	1f
+	jz	1f
 
 #if cond_lock == 0
 	movl	%ebx, %ecx
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
index db0428f527..ff3a1ccef3 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
@@ -61,8 +61,7 @@ __pthread_cond_wait:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 	/* Store the reference to the mutex.  If there is already a
 	   different value in there this is a bad user bug.  */
@@ -123,8 +122,7 @@ __pthread_cond_wait:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	5f
+	jnz	5f
 
 6:	movl	woken_seq(%ebx), %eax
 	movl	woken_seq+4(%ebx), %ecx
@@ -256,8 +254,7 @@ __condvar_w_cleanup:
 #else
 	cmpxchgl %edx, cond_lock(%ebx)
 #endif
-	testl	%eax, %eax
-	je	1f
+	jz	1f
 
 #if cond_lock == 0
 	movl	%ebx, %ecx
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
index 1c149433f0..db0639d21c 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
@@ -54,8 +54,7 @@ __pthread_rwlock_rdlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%ebx), %eax
 	testl	%eax, %eax
@@ -94,8 +93,7 @@ __pthread_rwlock_rdlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	12f
+	jnz	12f
 
 13:	subl	$1, READERS_QUEUED(%ebx)
 	jmp	2b
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
index 409c046b7b..eb5665b432 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
@@ -58,8 +58,7 @@ pthread_rwlock_timedrdlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebp)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%ebp), %eax
 	testl	%eax, %eax
@@ -127,8 +126,7 @@ pthread_rwlock_timedrdlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebp)
 #endif
-	testl	%eax, %eax
-	jne	12f
+	jnz	12f
 
 13:	subl	$1, READERS_QUEUED(%ebp)
 	cmpl	$-ETIMEDOUT, %ecx
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
index 00d9906e59..d9db77ba05 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
@@ -58,8 +58,7 @@ pthread_rwlock_timedwrlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebp)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%ebp), %eax
 	testl	%eax, %eax
@@ -125,8 +124,7 @@ pthread_rwlock_timedwrlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebp)
 #endif
-	testl	%eax, %eax
-	jne	12f
+	jnz	12f
 
 13:	subl	$1, WRITERS_QUEUED(%ebp)
 	cmpl	$-ETIMEDOUT, %ecx
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
index 839a5eb336..64aac3255a 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
@@ -52,8 +52,7 @@ __pthread_rwlock_unlock:
 #else
 	cmpxchgl %edx, MUTEX(%edi)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	cmpl	$0, WRITER(%edi)
 	jne	5f
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
index 89ad6a3774..ea9cc170db 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
@@ -54,8 +54,7 @@ __pthread_rwlock_wrlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%ebx), %eax
 	testl	%eax, %eax
@@ -92,8 +91,7 @@ __pthread_rwlock_wrlock:
 #else
 	cmpxchgl %edx, MUTEX(%ebx)
 #endif
-	testl	%eax, %eax
-	jne	12f
+	jnz	12f
 
 13:	subl	$1, WRITERS_QUEUED(%ebx)
 	jmp	2b
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
index ba32591623..be00e89638 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -115,8 +115,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_mutex_lock(futex) \
   (void) ({ int ignore1, ignore2;					      \
 	    __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t"		      \
-			      "testl %0, %0\n\t"			      \
-			      "jne _L_mutex_lock_%=\n\t"		      \
+			      "jnz _L_mutex_lock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_lock_%=,@function\n"	      \
 			      "_L_mutex_lock_%=:\n\t"			      \
@@ -136,8 +135,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_mutex_cond_lock(futex) \
   (void) ({ int ignore1, ignore2;					      \
 	    __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t"		      \
-			      "testl %0, %0\n\t"			      \
-			      "jne _L_mutex_cond_lock_%=\n\t"		      \
+			      "jnz _L_mutex_cond_lock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_cond_lock_%=,@function\n"	      \
 			      "_L_mutex_cond_lock_%=:\n\t"		      \
@@ -155,8 +153,7 @@ extern int __lll_mutex_unlock_wake (int *__futex)
 #define lll_mutex_timedlock(futex, timeout) \
   ({ int result, ignore1, ignore2;					      \
      __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t"			      \
-		       "testl %0, %0\n\t"				      \
-		       "jne _L_mutex_timedlock_%=\n\t"			      \
+		       "jnz _L_mutex_timedlock_%=\n\t"			      \
 		       ".subsection 1\n\t"				      \
 		       ".type _L_mutex_timedlock_%=,@function\n"	      \
 		       "_L_mutex_timedlock_%=:\n\t"			      \
@@ -251,8 +248,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 			      "je,pt 0f\n\t"				      \
 			      "lock\n"					      \
 			      "0:\tcmpxchgl %1, %2\n\t"			      \
-			      "testl %0, %0\n\t"			      \
-			      "jne _L_mutex_lock_%=\n\t"		      \
+			      "jnz _L_mutex_lock_%=\n\t"		      \
 			      ".subsection 1\n\t"			      \
 			      ".type _L_mutex_lock_%=,@function\n"	      \
 			      "_L_mutex_lock_%=:\n\t"			      \
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
index aff449b13a..a56c714aeb 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
@@ -38,34 +38,129 @@
 #define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000
 
 
-	/* Modified: %rax, %rsi.  */
-	.globl	__lll_lock_wait
-	.type	__lll_lock_wait,@function
-	.hidden	__lll_lock_wait
+	.globl	__lll_mutex_lock_wait
+	.type	__lll_mutex_lock_wait,@function
+	.hidden	__lll_mutex_lock_wait
 	.align	16
-__lll_lock_wait:
+__lll_mutex_lock_wait:
 	pushq	%r10
 	pushq	%rdx
 
 	xorq	%r10, %r10	/* No timeout.  */
+	movl	$2, %edx
+	movq	%r10, %rsi	/* movq $FUTEX_WAIT, %rsi */
 
 1:
-	leaq	-1(%rsi), %rdx	/* account for the preceeded xadd.  */
-	movq	%r10, %rsi	/* movq $FUTEX_WAIT, %rsi */
+	movl	$1, %eax
+	LOCK
+	cmpxchgl %edx, (%rdi)
+
+	testl	%eax, %eax
+	je	2f
+
 	movq	$SYS_futex, %rax
 	syscall
 
-	orl	$-1, %esi	/* Load -1.  */
-	LOCK
-	xaddl	%esi, (%rdi)
-	jne	1b
+	xorl	%eax, %eax
+2:	LOCK
+	cmpxchgl %edx, (%rdi)
 
-	movl	$-1, (%rdi)
+	jnz	1b
 
 	popq	%rdx
 	popq	%r10
 	retq
-	.size	__lll_lock_wait,.-__lll_lock_wait
+	.size	__lll_mutex_lock_wait,.-__lll_mutex_lock_wait
+
+
+#ifdef NOT_IN_libc
+	.globl	__lll_mutex_timedlock_wait
+	.type	__lll_mutex_timedlock_wait,@function
+	.hidden	__lll_mutex_timedlock_wait
+	.align	16
+__lll_mutex_timedlock_wait:
+	/* Check for a valid timeout value.  */
+	cmpq	$1000000000, 8(%rdx)
+	jae	3f
+
+	pushq	%r12
+	pushq	%r13
+	pushq	%r14
+
+	/* Stack frame for the timespec and timeval structs.  */
+	subq	$16, %rsp
+
+	movq	%rdi, %r12
+	movq	%rdx, %r13
+
+1:
+	/* Get current time.  */
+	movq	%rsp, %rdi
+	xorq	%rsi, %rsi
+	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
+	/* This is a regular function call, all calleer-save registers
+	   might be clobbered.  */
+	callq	*%rax
+
+	/* Compute relative timeout.  */
+	movq	8(%rsp), %rax
+	movq	$1000, %rdi
+	mul	%rdi		/* Milli seconds to nano seconds.  */
+	movq	(%r13), %rdi
+	movq	8(%r13), %rsi
+	subq	(%rsp), %rdi
+	subq	%rax, %rsi
+	jns	4f
+	addq	$1000000000, %rsi
+	decq	%rdi
+4:	testq	%rdi, %rdi
+	js	5f		/* Time is already up.  */
+
+	/* Futex call.  */
+	movq	%rdi, (%rsp)	/* Store relative timeout.  */
+	movq	%rsi, 8(%rsp)
+
+	movl	$1, %eax
+	movl	$2, %edx
+	LOCK
+	cmpxchgl %edx, (%r12)
+
+	testl	%eax, %eax
+	je	8f
+
+	movq	%rsp, %r10
+	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+	movq	%r12, %rdi
+	movq	$SYS_futex, %rax
+	syscall
+	movq	%rax, %rcx
+
+	movl	$1, %eax
+	LOCK
+	cmpxchgl %edx, (%rdi)
+	jnz	7f
+
+	movl	$2, (%rdi)
+	xorl	%eax, %eax
+
+8:	addq	$16, %rsp
+	popq	%r14
+	popq	%r13
+	popq	%r12
+	retq
+
+	/* Check whether the time expired.  */
+7:	cmpq	$-ETIMEDOUT, %rcx
+	je	5f
+	jmp	1b
+
+3:	movl	$EINVAL, %eax
+	retq
+
+5:	movl	$ETIMEDOUT, %eax
+	jmp	8b
+	.size	__lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
+#endif
 
 
 #ifdef NOT_IN_libc
@@ -88,24 +183,24 @@ lll_unlock_wake_cb:
 #endif
 
 
-	.globl	__lll_unlock_wake
-	.type	__lll_unlock_wake,@function
-	.hidden	__lll_unlock_wake
+	.globl	__lll_mutex_unlock_wake
+	.type	__lll_mutex_unlock_wake,@function
+	.hidden	__lll_mutex_unlock_wake
 	.align	16
-__lll_unlock_wake:
+__lll_mutex_unlock_wake:
 	pushq	%rsi
 	pushq	%rdx
 
-1:	movq	$FUTEX_WAKE, %rsi
+	movl	$0, (%rdi)
+	movq	$FUTEX_WAKE, %rsi
 	movl	$1, %edx	/* Wake one thread.  */
 	movq	$SYS_futex, %rax
-	movl	%edx, (%rdi)	/* Stores '$1'.  */
 	syscall
 
 	popq	%rdx
 	popq	%rsi
 	retq
-	.size	__lll_unlock_wake,.-__lll_unlock_wake
+	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
 
 
 #ifdef NOT_IN_libc
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
index 1f1e7dd1a9..35d132113d 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
@@ -38,7 +38,8 @@
 
 
 /* Initializer for compatibility lock.  */
-#define LLL_MUTEX_LOCK_INITIALIZER (0)
+#define LLL_MUTEX_LOCK_INITIALIZER		(0)
+#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED	(1)
 
 
 #define lll_futex_wait(futex, val) \
@@ -80,16 +81,16 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
   ({ unsigned char ret;							      \
      __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1; setne %0"		      \
 		       : "=a" (ret), "=m" (futex)			      \
-		       : "r" (1), "1" (futex), "0" (0)			      \
+		       : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\
+			 "0" (LLL_MUTEX_LOCK_INITIALIZER)		      \
 		       : "memory");					      \
      ret; })
 
 
 #define lll_mutex_lock(futex) \
-  (void) ({ int ignore1, ignore2;					      \
-	    __asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t"		      \
-			      "testl %0, %0\n\t"			      \
-			      "jne 1f\n\t"				      \
+  (void) ({ int ignore1, ignore2, ignore3;				      \
+	    __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t"		      \
+			      "jnz 1f\n\t"				      \
 			      ".subsection 1\n"				      \
 			      "1:\tleaq %2, %%rdi\n\t"			      \
 			      "subq $128, %%rsp\n\t"			      \
@@ -98,16 +99,16 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
 			      "jmp 2f\n\t"				      \
 			      ".previous\n"				      \
 			      "2:"					      \
-			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
-			      : "0" (1), "2" (futex)			      \
-			      : "ax", "cx", "r11", "cc", "memory"); })
+			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
+				"=a" (ignore3)				      \
+			      : "0" (1), "m" (futex), "3" (0)		      \
+			      : "cx", "r11", "cc", "memory"); })
 
 
 #define lll_mutex_cond_lock(futex) \
-  (void) ({ int ignore1, ignore2;					      \
-	    __asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t"		      \
-			      "testl %0, %0\n\t"			      \
-			      "jne 1f\n\t"				      \
+  (void) ({ int ignore1, ignore2, ignore3;				      \
+	    __asm __volatile (LOCK_INSTR "cmpxchgl %0, %2\n\t"		      \
+			      "jnz 1f\n\t"				      \
 			      ".subsection 1\n"				      \
 			      "1:\tleaq %2, %%rdi\n\t"			      \
 			      "subq $128, %%rsp\n\t"			      \
@@ -116,28 +117,28 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
 			      "jmp 2f\n\t"				      \
 			      ".previous\n"				      \
 			      "2:"					      \
-			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
-			      : "0" (2), "2" (futex)			      \
-			      : "ax", "cx", "r11", "cc", "memory"); })
+			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
+				"=a" (ignore3)				      \
+			      : "0" (2), "m" (futex), "3" (0)		      \
+			      : "cx", "r11", "cc", "memory"); })
 
 
 #define lll_mutex_timedlock(futex, timeout) \
   ({ int result, ignore1, ignore2, ignore3;				      \
-     __asm __volatile (LOCK_INSTR "xaddl %0, %4\n\t"			      \
-		       "testl %0, %0\n\t"				      \
-		       "jne 1f\n\t"					      \
+     __asm __volatile (LOCK_INSTR "cmpxchgl %2, %4\n\t"			      \
+		       "jnz 1f\n\t"					      \
 		       ".subsection 1\n"				      \
 		       "1:\tleaq %4, %%rdi\n\t"				      \
-		       "movq %7, %%rdx\n\t"				      \
+		       "movq %8, %%rdx\n\t"				      \
 		       "subq $128, %%rsp\n\t"				      \
 		       "callq __lll_mutex_timedlock_wait\n\t"		      \
 		       "addq $128, %%rsp\n\t"				      \
 		       "jmp 2f\n\t"					      \
 		       ".previous\n"					      \
 		       "2:"						      \
-		       : "=a" (result), "=&D" (ignore1), "=&S" (ignore2),     \
+		       : "=a" (result), "=&D" (ignore1), "=S" (ignore2),      \
 			 "=&d" (ignore3), "=m" (futex)			      \
-		       : "0" (1), "4" (futex), "m" (timeout)		      \
+		       : "0" (0), "2" (1), "m" (futex), "m" (timeout)	      \
 		       : "memory", "cx", "cc", "r10", "r11");		      \
      result; })
 
@@ -155,12 +156,12 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
 			      ".previous\n"				      \
 			      "2:"					      \
 			      : "=m" (futex), "=&D" (ignore)		      \
-			      : "0" (futex)				      \
+			      : "m" (futex)				      \
 			      : "ax", "cx", "r11", "cc", "memory"); })
 
 
 #define lll_mutex_islocked(futex) \
-  (futex != 0)
+  (futex != LLL_MUTEX_LOCK_INITIALIZER)
 
 
 /* We have a separate internal lock implementation which is not tied
@@ -170,63 +171,23 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
 typedef int lll_lock_t;
 
 /* Initializers for lock.  */
-#define LLL_LOCK_INITIALIZER		(1)
-#define LLL_LOCK_INITIALIZER_LOCKED	(0)
+#define LLL_LOCK_INITIALIZER		(0)
+#define LLL_LOCK_INITIALIZER_LOCKED	(1)
 
 
-extern int __lll_lock_wait (int *__futex, int val) attribute_hidden;
-extern int __lll_unlock_wake (int *__futex) attribute_hidden;
 extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 
 
 /* The states of a lock are:
-    1  -  untaken
-    0  -  taken by one user
-   <0  -  taken by more users */
+    0  -  untaken
+    1  -  taken by one user
+    2  -  taken by more users */
 
 
 #if defined NOT_IN_libc || defined UP
-# define lll_trylock(futex) \
-  ({ unsigned char ret;							      \
-     __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1; setne %0"		      \
-		       : "=a" (ret), "=m" (futex)			      \
-		       : "r" (0), "1" (futex), "0" (1)			      \
-		       : "memory");					      \
-     ret; })
-
-
-# define lll_lock(futex) \
-  (void) ({ int ignore1, ignore2;					      \
-	    __asm __volatile (LOCK_INSTR "xaddl %0, %2\n\t"		      \
-			      "jne 1f\n\t"				      \
-			      ".subsection 1\n"				      \
-			      "1:\tleaq %2, %%rdi\n\t"			      \
-			      "subq $128, %%rsp\n\t"			      \
-			      "callq __lll_lock_wait\n\t"		      \
-			      "addq $128, %%rsp\n\t"			      \
-			      "jmp 2f\n\t"				      \
-			      ".previous\n"				      \
-			      "2:"					      \
-			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
-			      : "0" (-1), "2" (futex)			      \
-			      : "ax", "cx", "r11", "cc", "memory"); })
-
-
-# define lll_unlock(futex) \
-  (void) ({ int ignore;							      \
-            __asm __volatile (LOCK_INSTR "incl %0\n\t"			      \
-			      "jng 1f\n\t"				      \
-			      ".subsection 1\n"				      \
-			      "1:\tleaq %0, %%rdi\n\t"			      \
-			      "subq $128, %%rsp\n\t"			      \
-			      "callq __lll_unlock_wake\n\t"		      \
-			      "addq $128, %%rsp\n\t"			      \
-			      "jmp 2f\n\t"				      \
-			      ".previous\n"				      \
-			      "2:"					      \
-			      : "=m" (futex), "=&D" (ignore)		      \
-			      : "0" (futex)				      \
-			      : "ax", "cx", "r11", "cc", "memory"); })
+# define lll_trylock(futex) lll_mutex_trylock (futex)
+# define lll_lock(futex) lll_mutex_lock (futex)
+# define lll_unlock(futex) lll_mutex_unlock (futex)
 #else
 /* Special versions of the macros for use in libc itself.  They avoid
    the lock prefix when the thread library is not used.
@@ -240,29 +201,31 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 		       "lock\n"						      \
 		       "0:\tcmpxchgl %2, %1; setne %0"			      \
 		       : "=a" (ret), "=m" (futex)			      \
-		       : "r" (0), "1" (futex), "0" (1)			      \
+		       : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\
+			 "0" (LLL_MUTEX_LOCK_INITIALIZER)		      \
 		       : "memory");					      \
      ret; })
 
 
 # define lll_lock(futex) \
-  (void) ({ int ignore1, ignore2;					      \
+  (void) ({ int ignore1, ignore2, ignore3;				      \
 	    __asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t"   \
 			      "je 0f\n\t"				      \
 			      "lock\n"					      \
-			      "0:\txaddl %0, %2\n\t"			      \
-			      "jne 1f\n\t"				      \
+			      "0:\tcmpxchgl %0, %2\n\t"			      \
+			      "jnz 1f\n\t"				      \
 			      ".subsection 1\n"				      \
 			      "1:\tleaq %2, %%rdi\n\t"			      \
 			      "subq $128, %%rsp\n\t"			      \
-			      "callq __lll_lock_wait\n\t"		      \
+			      "callq __lll_mutex_lock_wait\n\t"		      \
 			      "addq $128, %%rsp\n\t"			      \
 			      "jmp 2f\n\t"				      \
 			      ".previous\n"				      \
 			      "2:"					      \
-			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex) \
-			      : "0" (-1), "2" (futex)			      \
-			      : "ax", "cx", "r11", "cc", "memory"); })
+			      : "=S" (ignore1), "=&D" (ignore2), "=m" (futex),\
+				"=a" (ignore3)				      \
+			      : "0" (1), "m" (futex), "3" (0)		      \
+			      : "cx", "r11", "cc", "memory"); })
 
 
 # define lll_unlock(futex) \
@@ -270,12 +233,12 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
             __asm __volatile ("cmpl $0, __libc_multiple_threads(%%rip)\n\t"   \
 			      "je 0f\n\t"				      \
 			      "lock\n"					      \
-			      "0:\tincl %0\n\t"			      \
-			      "jng 1f\n\t"				      \
+			      "0:\tdecl %0\n\t"				      \
+			      "jne 1f\n\t"				      \
 			      ".subsection 1\n"				      \
 			      "1:\tleaq %0, %%rdi\n\t"			      \
 			      "subq $128, %%rsp\n\t"			      \
-			      "callq __lll_unlock_wake\n\t"		      \
+			      "callq __lll_mutex_unlock_wake\n\t"	      \
 			      "addq $128, %%rsp\n\t"			      \
 			      "jmp 2f\n\t"				      \
 			      ".previous\n"				      \
@@ -287,7 +250,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 
 
 #define lll_islocked(futex) \
-  (futex != 0)
+  (futex != LLL_MUTEX_LOCK_INITIALIZER)
 
 
 /* The kernel notifies a process with uses CLONE_CLEARTID via futex
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S
deleted file mode 100644
index 2a2f847684..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S
+++ /dev/null
@@ -1,175 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sysdep.h>
-#include <pthread-errnos.h>
-
-	.text
-
-#ifndef LOCK
-# ifdef UP
-#  define LOCK
-# else
-#  define LOCK lock
-# endif
-#endif
-
-#define SYS_futex		202
-#define FUTEX_WAIT		0
-#define FUTEX_WAKE		1
-
-/* For the calculation see asm/vsyscall.h.  */
-#define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000
-
-
-	.globl	__lll_mutex_lock_wait
-	.type	__lll_mutex_lock_wait,@function
-	.hidden	__lll_mutex_lock_wait
-	.align	16
-__lll_mutex_lock_wait:
-	pushq	%r10
-	pushq	%rdx
-
-	/* In the loop we are going to add 2 instead of 1 which is what
-	   the caller did.  Account for that.  */
-	decq	%rsi
-
-	xorq	%r10, %r10	/* No timeout.  */
-
-1:
-	leaq	2(%rsi), %rdx	/* account for the preceeded xadd.  */
-	movq	%r10, %rsi	/* movq $FUTEX_WAIT, %rsi */
-	movq	$SYS_futex, %rax
-	syscall
-
-	movl	$2, %esi
-	LOCK
-	xaddl	%esi, (%rdi)
-	testl	%esi, %esi
-	jne	1b
-
-	popq	%rdx
-	popq	%r10
-	retq
-	.size	__lll_mutex_lock_wait,.-__lll_mutex_lock_wait
-
-
-#ifdef NOT_IN_libc
-	.globl	__lll_mutex_timedlock_wait
-	.type	__lll_mutex_timedlock_wait,@function
-	.hidden	__lll_mutex_timedlock_wait
-	.align	16
-__lll_mutex_timedlock_wait:
-	/* Check for a valid timeout value.  */
-	cmpq	$1000000000, 8(%rdx)
-	jae	3f
-
-	pushq	%r12
-	pushq	%r13
-	pushq	%r14
-
-	/* Stack frame for the timespec and timeval structs.  */
-	subq	$16, %rsp
-
-	movq	%rdi, %r12
-	movq	%rdx, %r13
-
-1:	leaq	1(%rax), %r14
-
-	/* Get current time.  */
-	movq	%rsp, %rdi
-	xorq	%rsi, %rsi
-	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
-	/* This is a regular function call, all calleer-save registers
-	   might be clobbered.  */
-	callq	*%rax
-
-	/* Compute relative timeout.  */
-	movq	8(%rsp), %rax
-	movq	$1000, %rdi
-	mul	%rdi		/* Milli seconds to nano seconds.  */
-	movq	(%r13), %rdi
-	movq	8(%r13), %rsi
-	subq	(%rsp), %rdi
-	subq	%rax, %rsi
-	jns	4f
-	addq	$1000000000, %rsi
-	decq	%rdi
-4:	testq	%rdi, %rdi
-	js	5f		/* Time is already up.  */
-
-	/* Futex call.  */
-	movq	%rdi, (%rsp)	/* Store relative timeout.  */
-	movq	%rsi, 8(%rsp)
-
-	movl	%r14d, %edx
-	movq	%rsp, %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
-	movq	%r12, %rdi
-	movq	$SYS_futex, %rax
-	syscall
-	movq	%rax, %rcx
-
-	movl	$1, %eax
-	LOCK
-	xaddl	%eax, (%rdi)
-	testl	%eax, %eax
-	jne	7f
-
-	movl	$2, (%rdi)
-	xorl	%eax, %eax
-
-8:	addq	$16, %rsp
-	popq	%r14
-	popq	%r13
-	popq	%r12
-	retq
-
-	/* Check whether the time expired.  */
-7:	cmpq	$-ETIMEDOUT, %rcx
-	je	5f
-	jmp	1b
-
-3:	movl	$EINVAL, %eax
-	retq
-
-5:	movl	$ETIMEDOUT, %eax
-	jmp	8b
-	.size	__lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
-#endif
-
-
-	.globl	__lll_mutex_unlock_wake
-	.type	__lll_mutex_unlock_wake,@function
-	.hidden	__lll_mutex_unlock_wake
-	.align	16
-__lll_mutex_unlock_wake:
-	pushq	%rsi
-	pushq	%rdx
-
-	movl	$0, (%rdi)
-	movq	$FUTEX_WAKE, %rsi
-	movl	$1, %edx	/* Wake one thread.  */
-	movq	$SYS_futex, %rax
-	syscall
-
-	popq	%rdx
-	popq	%rsi
-	retq
-	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S
index fdd2958130..672f2cac0e 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S
@@ -38,10 +38,11 @@
 	.align	16
 pthread_barrier_wait:
 	/* Get the mutex.  */
-	orl	$-1, %esi
+	xorl	%eax, %eax
+	movl	$1, %esi
 	LOCK
-	xaddl	%esi, MUTEX(%rdi)
-	jne	1f
+	cmpxchgl %esi, MUTEX(%rdi)
+	jnz	1f
 
 	/* One less waiter.  If this was the last one needed wake
 	   everybody.  */
@@ -57,8 +58,8 @@ pthread_barrier_wait:
 
 	/* Release the mutex.  */
 	LOCK
-	addl	$1, MUTEX(%rdi)
-	jng	6f
+	decl	MUTEX(%rdi)
+	jne	6f
 
 	/* Wait for the remaining threads.  The call will return immediately
 	   if the CURR_EVENT memory has meanwhile been changed.  */
@@ -102,25 +103,25 @@ pthread_barrier_wait:
 	   waking the waiting threads since otherwise a new thread might
 	   arrive and gets waken up, too.  */
 	LOCK
-	addl	$1, MUTEX(%rdi)
-	jng	4f
+	decl	MUTEX(%rdi)
+	jne	4f
 
 5:	orl	$-1, %eax		/* == PTHREAD_BARRIER_SERIAL_THREAD */
 
 	retq
 
 1:	addq	$MUTEX, %rdi
-	callq	__lll_lock_wait
+	callq	__lll_mutex_lock_wait
 	subq	$MUTEX, %rdi
 	jmp	2b
 
 4:	addq	$MUTEX, %rdi
-	callq	__lll_unlock_wake
+	callq	__lll_mutex_unlock_wake
 	subq	$MUTEX, %rdi
 	jmp	5b
 
 6:	addq	$MUTEX, %rdi
-	callq	__lll_unlock_wake
+	callq	__lll_mutex_unlock_wake
 	subq	$MUTEX, %rdi
 	jmp	7b
 	.size	pthread_barrier_wait,.-pthread_barrier_wait
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S
index d9185925a4..e6b2bbf19c 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S
@@ -46,14 +46,14 @@ __pthread_cond_broadcast:
 
 	/* Get internal lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	addq	$wakeup_seq, %rdi
 	movq	total_seq-wakeup_seq(%rdi), %rcx
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
index d62310148d..92eadfc433 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
@@ -47,14 +47,14 @@ __pthread_cond_signal:
 	/* Get internal lock.  */
 	movq	%rdi, %r8
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	addq	$wakeup_seq, %rdi
 	movq	total_seq(%r8), %rcx
@@ -65,21 +65,11 @@ __pthread_cond_signal:
 	addq	$1, (%rdi)
 
 	/* Wake up one thread.  */
-	movq	$FUTEX_REQUEUE, %rsi
+	movq	$FUTEX_WAKE, %rsi
 	movq	$SYS_futex, %rax
-	xorq	%rdx, %rdx
-	movq	$1, %r10
+	movq	$1, %rdx
 	syscall
 
-#ifndef __ASSUME_FUTEX_REQUEUE
-	cmpq	$-EINVAL, %rax
-	je	7f
-#endif
-
-	/* If we moved a thread we in any case have to make the syscall.  */
-	testq	%rax, %rax
-	jne	5f
-
 	/* Unlock.  */
 4:	LOCK
 #if cond_lock == 0
@@ -112,15 +102,6 @@ __pthread_cond_signal:
 #endif
 	callq	__lll_mutex_unlock_wake
 	jmp	6b
-
-#ifndef __ASSUME_FUTEX_REQUEUE
-7:	/* The futex requeue functionality is not available.  */
-	movq	$1, %rdx
-	movq	$FUTEX_WAKE, %rsi
-	movq	$SYS_futex, %rax
-	syscall
-	jmp	4b
-#endif
 	.size	__pthread_cond_signal, .-__pthread_cond_signal
 versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
 		  GLIBC_2_3_2)
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
index b2b4449554..c0c8f55cfb 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
@@ -80,14 +80,14 @@ __pthread_cond_timedwait:
 
 	/* Get internal lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 	/* Unlock the mutex.  */
 2:	movq	16(%rsp), %rdi
@@ -188,13 +188,13 @@ __pthread_cond_timedwait:
 	/* Lock.  */
 	movq	8(%rsp), %rdi
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
 	jne	5f
 
 6:	movq	woken_seq(%rdi), %rax
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
index 3942faf1ad..d8681ebe6b 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
@@ -44,14 +44,14 @@ __condvar_cleanup:
 	movq	%rdi, %r8
 	movq	8(%rdi), %rdi
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
-	je	1f
+	jz	1f
 
 #if cond_lock != 0
 	addq	$cond_lock, %rdi
@@ -125,13 +125,13 @@ __pthread_cond_wait:
 
 	/* Get internal lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
 	jne	1f
 
 	/* Unlock the mutex.  */
@@ -186,14 +186,14 @@ __pthread_cond_wait:
 	/* Lock.  */
 	movq	8(%rsp), %rdi
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if cond_lock == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, cond_lock(%rdi)
+	cmpxchgl %esi, cond_lock(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	5f
+	jnz	5f
 
 6:	movq	woken_seq(%rdi), %rax
 
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S
index 0fd093e7dd..43c8cae34c 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S
@@ -43,14 +43,14 @@ __pthread_rwlock_rdlock:
 
 	/* Get the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%rdi), %eax
 	testl	%eax, %eax
@@ -82,14 +82,14 @@ __pthread_rwlock_rdlock:
 
 	/* Reget the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	12f
+	jnz	12f
 
 13:	decl	READERS_QUEUED(%rdi)
 	jmp	2b
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S
index 582e030abc..924e20868f 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S
@@ -53,14 +53,14 @@ pthread_rwlock_timedrdlock:
 
 	/* Get the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%r12), %eax
 	testl	%eax, %eax
@@ -123,14 +123,14 @@ pthread_rwlock_timedrdlock:
 
 	/* Reget the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%r12)
+	cmpxchgl %esi, (%r12)
 #else
-	xaddl	%esi, MUTEX(%r12)
+	cmpxchgl %esi, MUTEX(%r12)
 #endif
-	testl	%esi, %esi
-	jne	12f
+	jnz	12f
 
 13:	decl	READERS_QUEUED(%r12)
 	cmpq	$-ETIMEDOUT, %rdx
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S
index e7acab538a..ccaef47070 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S
@@ -52,14 +52,14 @@ pthread_rwlock_timedwrlock:
 
 	/* Get the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%r12), %eax
 	testl	%eax, %eax
@@ -119,14 +119,14 @@ pthread_rwlock_timedwrlock:
 
 	/* Reget the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%r12)
+	cmpxchgl %esi, (%r12)
 #else
-	xaddl	%esi, MUTEX(%r12)
+	cmpxchgl %esi, MUTEX(%r12)
 #endif
-	testl	%esi, %esi
-	jne	12f
+	jnz	12f
 
 13:	decl	WRITERS_QUEUED(%r12)
 	cmpq	$-ETIMEDOUT, %rdx
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S
index a3d2351b68..89652cc5d7 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S
@@ -40,14 +40,14 @@
 __pthread_rwlock_unlock:
 	/* Get the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	cmpq	$0, WRITER(%rdi)
 	jne	5f
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S
index f866d2e271..1fcb07eaef 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S
@@ -43,14 +43,14 @@ __pthread_rwlock_wrlock:
 
 	/* Get the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	1f
+	jnz	1f
 
 2:	movl	WRITER(%rdi), %eax
 	testl	%eax, %eax
@@ -80,14 +80,14 @@ __pthread_rwlock_wrlock:
 
 	/* Reget the lock.  */
 	movl	$1, %esi
+	xorl	%eax, %eax
 	LOCK
 #if MUTEX == 0
-	xaddl	%esi, (%rdi)
+	cmpxchgl %esi, (%rdi)
 #else
-	xaddl	%esi, MUTEX(%rdi)
+	cmpxchgl %esi, MUTEX(%rdi)
 #endif
-	testl	%esi, %esi
-	jne	12f
+	jnz	12f
 
 13:	decl	WRITERS_QUEUED(%rdi)
 	jmp	2b