diff options
| -rw-r--r-- | nptl/ChangeLog | 5 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 243ad921b8..e0439e1fdc 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,8 @@ +2004-03-23 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_mutex_trylock): + Remove unnecessary setne instruction. + 2004-03-22 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/pthread_getaffinity.c diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h index e420c3f6ef..9f089f8e6e 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -104,7 +104,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) #define lll_mutex_trylock(futex) \ ({ unsigned char ret; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1; setne %0" \ + __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ "0" (LLL_MUTEX_LOCK_INITIALIZER) \ |