[glib] Revert "Bug 724590 - GSlice slab_stack corruption"

[Ryan Lortie <desrt src gnome org>]

commit d93458d97d74ef12a08de20c1f27ea1cfa54447f
Author: Ryan Lortie <desrt desrt ca>
Date:   Wed Apr 16 07:53:58 2014 -0400

    Revert "Bug 724590 - GSlice slab_stack corruption"
    
    This reverts commit c49ec3c8d7a90589308ce1b87a92bc627335ffd2.

 glib/gslice.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/glib/gslice.c b/glib/gslice.c
index 2c5f4fb..0563d80 100644
--- a/glib/gslice.c
+++ b/glib/gslice.c
@@ -715,8 +715,7 @@ static ChunkLink*
 magazine_cache_pop_magazine (guint  ix,
                              gsize *countp)
 {
-  guint *counters = allocator->contention_counters;
-  g_mutex_lock_a (&allocator->magazine_mutex, &counters[ix]);
+  g_mutex_lock_a (&allocator->magazine_mutex, &allocator->contention_counters[ix]);
   if (!allocator->magazines[ix])
     {
       guint magazine_threshold = allocator_get_magazine_threshold (allocator, ix);