Update.

	* sysdeps/powerpc/bits/atomic.h (atomic_increment): Define.
	(atomic_decrement): Define.

	* sysdeps/powerpc/bits/atomic.h: Implement atomic_increment_val and
	atomic_decrement_val.
	* sysdeps/powerpc/powerpc32/bits/atomic.h: Likewise.
	* sysdeps/powerpc/powerpc64/bits/atomic.h: Likewise.

	* csu/tst-atomic.c (do_test): Add tests of atomic_increment_val
	and atomic_decrement_val.

1 files changed, 3 insertions, 4 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
index d9ee5d50b7..91b9955181 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
@@ -1,5 +1,5 @@
 /* sem_post -- post to a POSIX semaphore.  Powerpc version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
@@ -30,11 +30,10 @@ int
 __new_sem_post (sem_t *sem)
 {
   int *futex = (int *) sem;
-  int err, nr;
 
   __asm __volatile (__lll_rel_instr ::: "memory");
-  nr = atomic_exchange_and_add (futex, 1);
-  err = lll_futex_wake (futex, nr + 1);
+  int nr = atomic_increment_val (futex);
+  int err = lll_futex_wake (futex, nr);
   if (__builtin_expect (err, 0) < 0)
     {
       __set_errno (-err);