From: Francis Deslauriers <francis.deslauriers@efficios.com>
Date: Thu, 30 Aug 2018 01:36:47 +0000 (-0400)
Subject: Fix: ACCESS_ONCE was removed in 4.15, use READ_ONCE instead
X-Git-Tag: v2.11.0-rc1~2
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=b29a9c89c78c0d380625475f5810630a1c121ae8;p=lttng-modules.git

Fix: ACCESS_ONCE was removed in 4.15, use READ_ONCE instead

Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/probes/lttng-uprobes.c b/probes/lttng-uprobes.c
index 0b399291..bcdbbd84 100644
--- a/probes/lttng-uprobes.c
+++ b/probes/lttng-uprobes.c
@@ -52,11 +52,11 @@ int lttng_uprobes_handler_pre(struct uprobe_consumer *uc, struct pt_regs *regs)
 		unsigned long ip;
 	} payload;
 
-	if (unlikely(!ACCESS_ONCE(chan->session->active)))
+	if (unlikely(!READ_ONCE(chan->session->active)))
 		return 0;
-	if (unlikely(!ACCESS_ONCE(chan->enabled)))
+	if (unlikely(!READ_ONCE(chan->enabled)))
 		return 0;
-	if (unlikely(!ACCESS_ONCE(event->enabled)))
+	if (unlikely(!READ_ONCE(event->enabled)))
 		return 0;
 
 	lib_ring_buffer_ctx_init(&ctx, chan->chan, &lttng_probe_ctx,