Cleanup: Move wrapper/ headers to include/wrapper/

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

diff --git a/wrapper/rcu.h b/wrapper/rcu.h
deleted file mode 100644 (file)
index 29f6094..0000000
--- a/wrapper/rcu.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* 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>
- */
-
-#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)
-#endif
-
-#define lttng_rcu_dereference(p) rcu_dereference_raw_notrace(p)
-
-/**
- * lttng_list_entry_rcu - get the struct for this entry
- * @ptr:        the &struct list_head pointer.
- * @type:       the type of the struct this is embedded in.
- * @member:     the name of the list_head within the struct.
- *
- * This primitive may safely run concurrently with the _rcu list-mutation
- * primitives such as list_add_rcu() as long as it's guarded by
- * rcu_read_lock_sched().
- * Can be used while tracing RCU.
- */
-#define lttng_list_entry_rcu(ptr, type, member) \
-({ \
-       typeof(*ptr) __rcu *__ptr = (typeof(*ptr) __rcu __force *)ptr; \
-       container_of((typeof(ptr))lttng_rcu_dereference(__ptr), type, member); \
-})
-
-/**
- * lttng_list_for_each_entry_rcu - iterate over rcu list of given type
- * @pos:       the type * to use as a loop cursor.
- * @head:      the head for your list.
- * @member:    the name of the list_head within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock_sched().
- * Can be used while tracing RCU.
- */
-#define lttng_list_for_each_entry_rcu(pos, head, member) \
-       for (pos = lttng_list_entry_rcu((head)->next, typeof(*pos), member); \
-               &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 */