[BZ #4745]

	[BZ #4586]
	[BZ #4702]
	[BZ #4525]
	[BZ #4514]
	[BZ #4512]
	Merge selected bugfixes from the trunk.

1 files changed, 5 insertions, 28 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sem_post.c
index 7f90325585..671b43f7f7 100644
--- a/nptl/sysdeps/unix/sysv/linux/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/sem_post.c
@@ -1,5 +1,5 @@
 /* sem_post -- post to a POSIX semaphore.  Generic futex-using version.
-   Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
@@ -29,36 +29,10 @@
 int
 __new_sem_post (sem_t *sem)
 {
-  struct new_sem *isem = (struct new_sem *) sem;
-
-  int nr = atomic_increment_val (&isem->value);
-  atomic_full_barrier ();
-  if (isem->nwaiters > 0)
-    {
-      int err = lll_futex_wake (&isem->value, 1,
-				// XYZ check mutex flag
-				LLL_SHARED);
-      if (__builtin_expect (err, 0) < 0)
-	{
-	  __set_errno (-err);
-	  return -1;
-	}
-    }
-  return 0;
-}
-versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
-
-
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-int
-attribute_compat_text_section
-__old_sem_post (sem_t *sem)
-{
   int *futex = (int *) sem;
 
   int nr = atomic_increment_val (futex);
-  /* We always have to assume it is a shared semaphore.  */
-  int err = lll_futex_wake (futex, 1, LLL_SHARED);
+  int err = lll_futex_wake (futex, nr);
   if (__builtin_expect (err, 0) < 0)
     {
       __set_errno (-err);
@@ -66,5 +40,8 @@ __old_sem_post (sem_t *sem)
     }
   return 0;
 }
+versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_post, __old_sem_post)
 compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
 #endif