From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 13 Apr 2020 19:20:57 +0000 (-0400)
Subject: wrapper: compiler.h: remove READ_ONCE/WRITE_ONCE wrappers
X-Git-Tag: for-upstreaming-review-1~77
X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=commitdiff_plain;h=422c59157ae5203ff884bed27e6ff5c30eb6cb7e

wrapper: compiler.h: remove READ_ONCE/WRITE_ONCE wrappers
---

diff --git a/wrapper/compiler.h b/wrapper/compiler.h
index 38974c06..16d41318 100644
--- a/wrapper/compiler.h
+++ b/wrapper/compiler.h
@@ -26,19 +26,6 @@
 # endif
 #endif
 
-/*
- * READ/WRITE_ONCE were introduced in kernel 3.19 and ACCESS_ONCE
- * was removed in 4.15. Prefer READ/WRITE but fallback to ACCESS
- * when they are not available.
- */
-#ifndef READ_ONCE
-# define READ_ONCE(x)		ACCESS_ONCE(x)
-#endif
-
-#ifndef WRITE_ONCE
-# define WRITE_ONCE(x, val)	({ ACCESS_ONCE(x) = val; })
-#endif
-
 #define __LTTNG_COMPOUND_LITERAL(type, ...)	(type[]) { __VA_ARGS__ }
 
 #endif /* _LTTNG_WRAPPER_COMPILER_H */