1 files changed, 28 insertions, 0 deletions
diff --git a/libglusterfs/src/locking.c b/libglusterfs/src/locking.c
new file mode 100644
index 00000000000..d3b9754ef76
--- /dev/null
+++ b/libglusterfs/src/locking.c
@@ -0,0 +1,28 @@
+/*
+  Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
+  This file is part of GlusterFS.
+
+  This file is licensed to you under your choice of the GNU Lesser
+  General Public License, version 3 or any later version (LGPLv3 or
+  later), or the GNU General Public License, version 2 (GPLv2), in all
+  cases as published by the Free Software Foundation.
+*/
+
+#if defined(HAVE_SPINLOCK)
+/* None of this matters otherwise. */
+
+#include <pthread.h>
+#include <unistd.h>
+
+#define LOCKING_IMPL
+#include "locking.h"
+
+int use_spinlocks = 0;
+
+static void __attribute__((constructor))
+gf_lock_setup (void)
+{
+        use_spinlocks = (sysconf(_SC_NPROCESSORS_ONLN) > 1);
+}
+
+#endif