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authorUlrich Drepper <drepper@redhat.com>2006-08-30 19:11:05 +0000
committerUlrich Drepper <drepper@redhat.com>2006-08-30 19:11:05 +0000
commitbee2df0bb966087d7f57d935a4234ffe30c76196 (patch)
tree045458320a987e129ff0770f957de833bd43f4d5 /nptl/sysdeps
parent99ea5991a4957f7a21466a4b48c5020eb70db2b7 (diff)
downloadglibc-bee2df0bb966087d7f57d935a4234ffe30c76196.tar.gz
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* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Respect cvs/fedora-glibc-20060831T0640
	reader preference.
	* sysdeps/pthread/pthread_rwlock_timedwrlock.c
	(pthread_rwlock_timedwrlock): Likewise.
	* sysdeps/pthread/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock):
	Likewise.
Diffstat (limited to 'nptl/sysdeps')
-rw-r--r--nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c6
-rw-r--r--nptl/sysdeps/pthread/pthread_rwlock_wrlock.c6
2 files changed, 8 insertions, 4 deletions
diff --git a/nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c b/nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c
index 97c0598f96..ab7bc7babb 100644
--- a/nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c
+++ b/nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
 
@@ -40,7 +40,9 @@ pthread_rwlock_timedwrlock (rwlock, abstime)
       int err;
 
       /* Get the rwlock if there is no writer and no reader.  */
-      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
+      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+	  && (rwlock->__data.__flags != 0
+	      || rwlock->__data.__nr_readers_queued == 0))
 	{
 	  /* Mark self as writer.  */
 	  rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);
diff --git a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c
index 822aeed79c..4d967f2496 100644
--- a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c
+++ b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
 
@@ -37,7 +37,9 @@ __pthread_rwlock_wrlock (rwlock)
   while (1)
     {
       /* Get the rwlock if there is no writer and no reader.  */
-      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
+      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+	  && (rwlock->__data.__flags != 0
+	      || rwlock->__data.__nr_readers_queued == 0))
 	{
 	  /* Mark self as writer.  */
 	  rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);