diff options
| author | riastradh <riastradh@NetBSD.org> | 2021-12-19 00:48:23 +0000 |
|---|---|---|
| committer | riastradh <riastradh@NetBSD.org> | 2021-12-19 00:48:23 +0000 |
| commit | e5a638b191a9c5f0a135ce40cd9694b9bb2e0949 (patch) | |
| tree | dc88d43842df796212235421a68797db2c89c09d /sys/external/bsd/common/include/linux | |
| parent | e277e9db5d365d8d00388155dd847b050f9dad80 (diff) | |
Replace ACCESS_ONCE by READ_ONCE, WRITE_ONCE.
Diffstat (limited to 'sys/external/bsd/common/include/linux')
| -rw-r--r-- | sys/external/bsd/common/include/linux/compiler.h | 16 | ||||
| -rw-r--r-- | sys/external/bsd/common/include/linux/kernel.h | 8 |
2 files changed, 16 insertions, 8 deletions
diff --git a/sys/external/bsd/common/include/linux/compiler.h b/sys/external/bsd/common/include/linux/compiler.h index 0ccebdeee6b..100a59d7d7c 100644 --- a/sys/external/bsd/common/include/linux/compiler.h +++ b/sys/external/bsd/common/include/linux/compiler.h @@ -1,4 +1,4 @@ -/* $NetBSD: compiler.h,v 1.1 2021/12/19 00:45:28 riastradh Exp $ */ +/* $NetBSD: compiler.h,v 1.2 2021/12/19 00:48:23 riastradh Exp $ */ /*- * Copyright (c) 2018 The NetBSD Foundation, Inc. @@ -32,4 +32,18 @@ #ifndef _LINUX_COMPILER_H_ #define _LINUX_COMPILER_H_ +#include <sys/atomic.h> + +#define READ_ONCE(X) ({ \ + typeof(X) __read_once_tmp = (X); \ + membar_datadep_consumer(); \ + __read_once_tmp; \ +}) + +#define WRITE_ONCE(X, V) ({ \ + typeof(X) __write_once_tmp = (V); \ + (X) = __write_once_tmp; \ + __write_once_tmp; \ +}) + #endif /* _LINUX_COMPILER_H_ */ diff --git a/sys/external/bsd/common/include/linux/kernel.h b/sys/external/bsd/common/include/linux/kernel.h index 9a29d1c2b8d..308761707ad 100644 --- a/sys/external/bsd/common/include/linux/kernel.h +++ b/sys/external/bsd/common/include/linux/kernel.h @@ -1,4 +1,4 @@ -/* $NetBSD: kernel.h,v 1.30 2021/12/19 00:48:16 riastradh Exp $ */ +/* $NetBSD: kernel.h,v 1.31 2021/12/19 00:48:23 riastradh Exp $ */ /*- * Copyright (c) 2013 The NetBSD Foundation, Inc. @@ -147,12 +147,6 @@ } \ } while (0) -#define ACCESS_ONCE(X) ({ \ - typeof(X) __access_once_tmp = (X); \ - __insn_barrier(); \ - __access_once_tmp; \ -}) - static __inline int64_t abs64(int64_t x) { |
