X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=probes%2Flttng-ftrace.c;h=fe1bfd6652ab837a0911b566b3c5dc6759d28043;hb=740572854b9a9a2670ef6185afc9707608559368;hp=9ec326ee56d992ab57101cc3d424d93f18fb3278;hpb=5d8496675c9e8ccf169871f4f72022df9677624a;p=lttng-modules.git

diff --git a/probes/lttng-ftrace.c b/probes/lttng-ftrace.c
index 9ec326ee..fe1bfd66 100644
--- a/probes/lttng-ftrace.c
+++ b/probes/lttng-ftrace.c
@@ -1,23 +1,10 @@
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
  * probes/lttng-ftrace.c
  *
  * LTTng function tracer integration module.
  *
  * Copyright (C) 2009-2012 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
  */
 
 /*
@@ -58,11 +45,11 @@ void lttng_ftrace_handler(unsigned long ip, unsigned long parent_ip,
 	} payload;
 	int ret;
 
-	if (unlikely(!ACCESS_ONCE(chan->session->active)))
+	if (unlikely(!READ_ONCE(chan->session->active)))
 		return;
-	if (unlikely(!ACCESS_ONCE(chan->enabled)))
+	if (unlikely(!READ_ONCE(chan->enabled)))
 		return;
-	if (unlikely(!ACCESS_ONCE(event->enabled)))
+	if (unlikely(!READ_ONCE(event->enabled)))
 		return;
 
 	lib_ring_buffer_ctx_init(&ctx, chan->chan, &lttng_probe_ctx,
@@ -94,11 +81,11 @@ void lttng_ftrace_handler(unsigned long ip, unsigned long parent_ip, void **data
 	} payload;
 	int ret;
 
-	if (unlikely(!ACCESS_ONCE(chan->session->active)))
+	if (unlikely(!READ_ONCE(chan->session->active)))
 		return;
-	if (unlikely(!ACCESS_ONCE(chan->enabled)))
+	if (unlikely(!READ_ONCE(chan->enabled)))
 		return;
-	if (unlikely(!ACCESS_ONCE(event->enabled)))
+	if (unlikely(!READ_ONCE(event->enabled)))
 		return;
 
 	lib_ring_buffer_ctx_init(&ctx, chan->chan, &lttng_probe_ctx,
@@ -241,8 +228,8 @@ void lttng_ftrace_exit(void)
 module_exit(lttng_ftrace_exit)
 
 MODULE_LICENSE("GPL and additional rights");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Linux Trace Toolkit Ftrace Support");
+MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
+MODULE_DESCRIPTION("LTTng ftrace probes");
 MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
 	__stringify(LTTNG_MODULES_MINOR_VERSION) "."
 	__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)