Move wrapper/ringbuffer to include/ringbuffer

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

diff --git a/wrapper/rcu.h b/wrapper/rcu.h
index 2fc60b137814e66dd08455a92cc06673bbaca1f3..b1877a49ea1429ba2d0ffe40241fa19e3cf964df 100644 (file)
--- a/wrapper/rcu.h
+++ b/wrapper/rcu.h
@@ -1,32 +1,18 @@
-#ifndef _LTTNG_WRAPPER_RCU_H
-#define _LTTNG_WRAPPER_RCU_H
-
-/*
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
  * wrapper/rcu.h
  *
  * wrapper around linux/rcupdate.h and linux/rculist.h.
  *
  * Copyright (C) 2014 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_RCU_H
+#define _LTTNG_WRAPPER_RCU_H
+
 #include <linux/version.h>
 #include <linux/rculist.h>
 #include <linux/rcupdate.h>
-#include <wrapper/list.h>
 
 #ifndef rcu_dereference_raw_notrace
 #define rcu_dereference_raw_notrace(p) rcu_dereference_raw(p)
@@ -67,24 +53,4 @@
                &pos->member != (head); \
                pos = lttng_list_entry_rcu(pos->member.next, typeof(*pos), member))
 
-/**
- * lttng_hlist_for_each_entry_rcu - iterate over rcu list of given type (for tracing)
- * @pos:       the type * to use as a loop cursor.
- * @head:      the head for your list.
- * @member:    the name of the hlist_node within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as hlist_add_head_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- *
- * This is the same as hlist_for_each_entry_rcu() except that it does
- * not do any RCU debugging or tracing.
- */
-#define lttng_hlist_for_each_entry_rcu(pos, head, member)      \
-       for (pos = lttng_hlist_entry_safe (lttng_rcu_dereference(lttng_hlist_first_rcu(head)), \
-                       typeof(*(pos)), member);                \
-               pos;                                            \
-               pos = lttng_hlist_entry_safe(lttng_rcu_dereference(lttng_hlist_next_rcu( \
-                       &(pos)->member)), typeof(*(pos)), member))
-
 #endif /* _LTTNG_WRAPPER_RCU_H */