Cleanup: Move instrumentation/ headers to include/instrumentation/

[lttng-modules.git] / wrapper / perf.h

diff --git a/wrapper/perf.h b/wrapper/perf.h
index 2caf308ab0abc6711070e0f796e337db1c607852..bbdfb63c8d0d140f7c7e7e8e3660887f995a5edb 100644 (file)
--- a/wrapper/perf.h
+++ b/wrapper/perf.h
@@ -1,29 +1,18 @@
-#ifndef _LTTNG_WRAPPER_PERF_H
-#define _LTTNG_WRAPPER_PERF_H
-
-/*
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
  * wrapper/perf.h
  *
  * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#ifndef _LTTNG_WRAPPER_PERF_H
+#define _LTTNG_WRAPPER_PERF_H
+
 #include <linux/perf_event.h>
 
-#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,99))
+#ifdef CONFIG_PERF_EVENTS
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
 static inline struct perf_event *
 wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
                                int cpu,
@@ -32,7 +21,7 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 {
        return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL);
 }
-#else
+#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
 static inline struct perf_event *
 wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
                                int cpu,
@@ -41,6 +30,8 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 {
        return perf_event_create_kernel_counter(attr, cpu, task, callback);
 }
-#endif
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
+
+#endif /* CONFIG_PERF_EVENTS */
 
 #endif /* _LTTNG_WRAPPER_PERF_H */