* pthread_getattr_np.c: No need to install a cancellation handler,

	this is no cancellation point.
	* pthread_getschedparam.c: Likewise.
	* pthread_setschedparam.c: Likewise.
	* pthread_setschedprio.c: Likewise.
	* sysdeps/unix/sysv/linux/lowlevellock.c: Remove all traces of
	lll_unlock_wake_cb.
	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.

18 files changed, 34 insertions, 163 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 285c379..09a05c1 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,8 +1,24 @@
 2007-05-29  Ulrich Drepper  <drepper@redhat.com>
 
-	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
-	(__lll_mutex_unlock_wake): Add back label '1' which went AWOL quite
-	some time ago.
+	* pthread_getattr_np.c: No need to install a cancellation handler,
+	this is no cancellation point.
+	* pthread_getschedparam.c: Likewise.
+	* pthread_setschedparam.c: Likewise.
+	* pthread_setschedprio.c: Likewise.
+	* sysdeps/unix/sysv/linux/lowlevellock.c: Remove all traces of
+	lll_unlock_wake_cb.
+	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
 
 	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Checking
 	whether there are more than one thread makes no sense here since
diff --git a/nptl/pthread_getattr_np.c b/nptl/pthread_getattr_np.c
index 4bdc7b5..9c0e4ed 100644
--- a/nptl/pthread_getattr_np.c
+++ b/nptl/pthread_getattr_np.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -39,10 +39,6 @@ pthread_getattr_np (thread_id, attr)
   struct pthread_attr *iattr = (struct pthread_attr *) attr;
   int ret = 0;
 
-  /* We have to handle cancellation in the following code since we are
-     locking another threads desriptor.  */
-  pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &thread->lock);
-
   lll_lock (thread->lock);
 
   /* The thread library is responsible for keeping the values in the
@@ -175,7 +171,5 @@ pthread_getattr_np (thread_id, attr)
 
   lll_unlock (thread->lock);
 
-  pthread_cleanup_pop (0);
-
   return ret;
 }
diff --git a/nptl/pthread_getschedparam.c b/nptl/pthread_getschedparam.c
index 434d867..5e87130 100644
--- a/nptl/pthread_getschedparam.c
+++ b/nptl/pthread_getschedparam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -38,10 +38,6 @@ __pthread_getschedparam (threadid, policy, param)
 
   int result = 0;
 
-  /* We have to handle cancellation in the following code since we are
-     locking another threads descriptor.  */
-  pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
-
   lll_lock (pd->lock);
 
   /* The library is responsible for maintaining the values at all
@@ -74,8 +70,6 @@ __pthread_getschedparam (threadid, policy, param)
 
   lll_unlock (pd->lock);
 
-  pthread_cleanup_pop (0);
-
   return result;
 }
 strong_alias (__pthread_getschedparam, pthread_getschedparam)
diff --git a/nptl/pthread_setschedparam.c b/nptl/pthread_setschedparam.c
index 30ac6b3..8129dec 100644
--- a/nptl/pthread_setschedparam.c
+++ b/nptl/pthread_setschedparam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -39,10 +39,6 @@ __pthread_setschedparam (threadid, policy, param)
 
   int result = 0;
 
-  /* We have to handle cancellation in the following code since we are
-     locking another threads desriptor.  */
-  pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
-
   lll_lock (pd->lock);
 
   struct sched_param p;
@@ -73,8 +69,6 @@ __pthread_setschedparam (threadid, policy, param)
 
   lll_unlock (pd->lock);
 
-  pthread_cleanup_pop (0);
-
   return result;
 }
 strong_alias (__pthread_setschedparam, pthread_setschedparam)
diff --git a/nptl/pthread_setschedprio.c b/nptl/pthread_setschedprio.c
index 4a71f6c..59462ec 100644
--- a/nptl/pthread_setschedprio.c
+++ b/nptl/pthread_setschedprio.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -41,10 +41,6 @@ pthread_setschedprio (threadid, prio)
   struct sched_param param;
   param.sched_priority = prio;
 
-  /* We have to handle cancellation in the following code since we are
-     locking another threads desriptor.  */
-  pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
-
   lll_lock (pd->lock);
 
   /* If the thread should have higher priority because of some
@@ -66,7 +62,5 @@ pthread_setschedprio (threadid, prio)
 
   lll_unlock (pd->lock);
 
-  pthread_cleanup_pop (0);
-
   return result;
 }
diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
index 58b4806..04ac006 100644
--- a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -237,8 +237,6 @@ typedef int lll_lock_t;
 #define LLL_LOCK_INITIALIZER		(0)
 #define LLL_LOCK_INITIALIZER_LOCKED	(1)
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
 /* The states of a lock are:
     0  -  untaken
     1  -  taken by one user
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
index 1c47b37..cfcc7da 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
@@ -219,35 +219,6 @@ __lll_mutex_timedlock_wait:
 #endif
 
 
-#ifdef NOT_IN_libc
-	.globl	lll_unlock_wake_cb
-	.type	lll_unlock_wake_cb,@function
-	.hidden	lll_unlock_wake_cb
-	.align	16
-lll_unlock_wake_cb:
-	pushl	%ebx
-	pushl	%ecx
-	pushl	%edx
-
-	movl	20(%esp), %ebx
-	LOCK
-	subl	$1, (%ebx)
-	je	1f
-
-	movl	$FUTEX_WAKE, %ecx
-	movl	$1, %edx	/* Wake one thread.  */
-	movl	$SYS_futex, %eax
-	movl	$0, (%ebx)
-	ENTER_KERNEL
-
-1:	popl	%edx
-	popl	%ecx
-	popl	%ebx
-	ret
-	.size	lll_unlock_wake_cb,.-lll_unlock_wake_cb
-#endif
-
-
 	.globl	__lll_mutex_unlock_wake
 	.type	__lll_mutex_unlock_wake,@function
 	.hidden	__lll_mutex_unlock_wake
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
index b89d5dd..aa963f7 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -449,7 +449,6 @@ extern int __lll_lock_wait (int val, int *__futex)
      __attribute ((regparm (2))) attribute_hidden;
 extern int __lll_unlock_wake (int *__futex)
      __attribute ((regparm (1))) attribute_hidden;
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 
 
 /* The states of a lock are:
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
index 8df997a..1709347 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
@@ -226,8 +226,6 @@ extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *)
 /* Type for lock object.  */
 typedef int lll_lock_t;
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
 /* Initializers for lock.  */
 #define LLL_LOCK_INITIALIZER		(0)
 #define LLL_LOCK_INITIALIZER_LOCKED	(1)
diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
index 932e273..38d7888 100644
--- a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
+++ b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
@@ -1,5 +1,5 @@
 /* low level locking for pthread library.  Generic futex-using version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
@@ -76,21 +76,9 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime)
 }
 
 
-/* These don't get included in libc.so  */
+/* This function doesn't get included in libc.so  */
 #ifdef IS_IN_libpthread
 int
-lll_unlock_wake_cb (int *futex)
-{
-  int val = atomic_exchange_rel (futex, 0);
-
-  if (__builtin_expect (val > 1, 0))
-    lll_futex_wake (futex, 1);
-
-  return 0;
-}
-
-
-int
 __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
 {
   int tid;
@@ -127,5 +115,4 @@ __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
 
   return 0;
 }
-
 #endif
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index 71fede8..20547f9 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -263,8 +263,6 @@ typedef int lll_lock_t;
 #define LLL_LOCK_INITIALIZER		(0)
 #define LLL_LOCK_INITIALIZER_LOCKED	(1)
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
 /* The states of a lock are:
     0  -  untaken
     1  -  taken by one user
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
index 38d9f2a..d915fac 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
 
@@ -321,8 +321,6 @@ typedef int lll_lock_t;
 #define lll_unlock(futex)       lll_mutex_unlock (futex)
 #define lll_islocked(futex)     lll_mutex_islocked (futex)
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
 /* The states of a lock are:
     1  -  untaken
     0  -  taken by one user
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S
index ac31698..3b0b66d 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -186,34 +186,6 @@ __lll_mutex_timedlock_wait:
 #endif
 
 
-#ifdef NOT_IN_libc
-	.globl	lll_unlock_wake_cb
-	.type	lll_unlock_wake_cb,@function
-	.hidden	lll_unlock_wake_cb
-	.align	5
-	cfi_startproc
-lll_unlock_wake_cb:
-	DEC	(@r4, r2)
-	tst	r2, r2
-	bt	1f
-
-	mov	#FUTEX_WAKE, r5
-	mov	#1, r6		/* Wake one thread.  */
-	mov	#0, r7
-	mov.l	r7, @r4		/* Stores 0.  */
-	mov	#SYS_futex, r3
-	extu.b	r3, r3
-	trapa	#0x14
-	SYSCALL_INST_PAD
-
-1:	
-	rts
-	 nop
-	cfi_endproc
-	.size	lll_unlock_wake_cb,.-lll_unlock_wake_cb
-#endif
-
-
 	.globl	__lll_mutex_unlock_wake
 	.type	__lll_mutex_unlock_wake,@function
 	.hidden	__lll_mutex_unlock_wake
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
index 0eb1f01..be8d403 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -344,9 +344,6 @@ typedef int lll_lock_t;
   } while (0)
 
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
-
 /* The states of a lock are:
     0  -  untaken
     1  -  taken by one user
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
index 5013922..65489706 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
@@ -240,8 +240,6 @@ __lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime,
 /* Type for lock object.  */
 typedef int lll_lock_t;
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
 /* Initializers for lock.  */
 #define LLL_LOCK_INITIALIZER		(0)
 #define LLL_LOCK_INITIALIZER_LOCKED	(1)
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
index a7611d6..cb9578b 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
@@ -1,5 +1,5 @@
 /* low level locking for pthread library.  SPARC version.
-   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
@@ -76,21 +76,9 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime)
 }
 
 
-/* These don't get included in libc.so  */
+/* This function doesn't get included in libc.so  */
 #ifdef IS_IN_libpthread
 int
-lll_unlock_wake_cb (int *futex)
-{
-  int val = atomic_exchange_24_rel (futex, 0);
-
-  if (__builtin_expect (val > 1, 0))
-    lll_futex_wake (futex, 1);
-
-  return 0;
-}
-
-
-int
 __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
 {
   int tid;
@@ -127,5 +115,4 @@ __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
 
   return 0;
 }
-
 #endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
index b92fa5c..502f1d4 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
@@ -220,26 +220,6 @@ __lll_mutex_timedlock_wait:
 #endif
 
 
-#ifdef NOT_IN_libc
-	.globl	lll_unlock_wake_cb
-	.type	lll_unlock_wake_cb,@function
-	.hidden	lll_unlock_wake_cb
-	.align	16
-lll_unlock_wake_cb:
-	pushq	%rsi
-	pushq	%rdx
-
-	LOCK
-	addl	$1, (%rdi)
-	jng	1f
-
-	popq	%rdx
-	popq	%rsi
-	retq
-	.size	lll_unlock_wake_cb,.-lll_unlock_wake_cb
-#endif
-
-
 	.globl	__lll_mutex_unlock_wake
 	.type	__lll_mutex_unlock_wake,@function
 	.hidden	__lll_mutex_unlock_wake
@@ -253,8 +233,7 @@ __lll_mutex_unlock_wake:
 	cfi_offset(%rsi, -16)
 	cfi_offset(%rdx, -24)
 
-	/* NB: the label '1' is needed by lll_unlock_wake_cb.  */
-1:	movl	$0, (%rdi)
+	movl	$0, (%rdi)
 	LOAD_FUTEX_WAKE (%esi)
 	movl	$1, %edx	/* Wake one thread.  */
 	movl	$SYS_futex, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
index fbe48b3..d3055cb 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
@@ -455,9 +455,6 @@ typedef int lll_lock_t;
 #define LLL_LOCK_INITIALIZER_LOCKED	(1)
 
 
-extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
-
-
 /* The states of a lock are:
     0  -  untaken
     1  -  taken by one user