Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __BARRIER_H
3#define __BARRIER_H
4
5#define mb() __asm__ __volatile__("mb": : :"memory")
6#define rmb() __asm__ __volatile__("mb": : :"memory")
7#define wmb() __asm__ __volatile__("wmb": : :"memory")
8
9#define __smp_load_acquire(p) \
10({ \
11 compiletime_assert_atomic_type(*p); \
12 __READ_ONCE(*p); \
13})
14
15#ifdef CONFIG_SMP
16#define __ASM_SMP_MB "\tmb\n"
17#else
18#define __ASM_SMP_MB
19#endif
20
21#include <asm-generic/barrier.h>
22
23#endif /* __BARRIER_H */