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Date: Thu, 03 Apr 2003 11:02:00 -0000
From: Jakub Jelinek <jakub@redhat.com>
To: Ulrich Drepper <drepper@redhat.com>, Roland McGrath <roland@redhat.com>
Cc: Glibc hackers <libc-hacker@sources.redhat.com>
Subject: [PATCH] Fix get_proc_path
Message-ID: <20030403110213.GQ16629@sunsite.ms.mff.cuni.cz>
Reply-To: Jakub Jelinek <jakub@redhat.com>
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X-SW-Source: 2003-04/txt/msg00014.txt.bz2

Hi!

atomic_compare_and_exchange_bool_acq returns non-zero if it failed to
exchange. This fixes getconf _NPROCESSORS_ONLN on my box.

2003-04-03  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Reverse test
	for atomic_compare_and_exchange_bool_acq failure.

--- libc/sysdeps/unix/sysv/linux/getsysstats.c.jj	2003-03-21 05:17:37.000000000 -0500
+++ libc/sysdeps/unix/sysv/linux/getsysstats.c	2003-04-03 05:31:09.000000000 -0500
@@ -85,7 +85,7 @@ get_proc_path (char *buffer, size_t bufs
 
   /* Now store the copied value.  But do it atomically.  */
   assert (sizeof (long int) == sizeof (void *__unbounded));
-  if (! atomic_compare_and_exchange_bool_acq (&mount_proc, copy_result, NULL))
+  if (atomic_compare_and_exchange_bool_acq (&mount_proc, copy_result, NULL))
     /* Replacing the value failed.  This means another thread was
        faster and we don't need the copy anymore.  */
     free (copy_result);

	Jakub