| Server IP : 127.0.1.1 / Your IP : 216.73.216.172 Web Server : Apache/2.4.52 (Ubuntu) System : Linux bahcrestlinepropertiesllc 5.15.0-113-generic #123-Ubuntu SMP Mon Jun 10 08:16:17 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /proc/self/root/usr/lib/modules/5.15.0-113-generic/build/arch/alpha/include/asm/ |
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 Google LLC.
*/
#ifndef __ASM_RWONCE_H
#define __ASM_RWONCE_H
#ifdef CONFIG_SMP
#include <asm/barrier.h>
/*
* Alpha is apparently daft enough to reorder address-dependent loads
* on some CPU implementations. Knock some common sense into it with
* a memory barrier in READ_ONCE().
*
* For the curious, more information about this unusual reordering is
* available in chapter 15 of the "perfbook":
*
* https://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html
*
*/
#define __READ_ONCE(x) \
({ \
__unqual_scalar_typeof(x) __x = \
(*(volatile typeof(__x) *)(&(x))); \
mb(); \
(typeof(x))__x; \
})
#endif /* CONFIG_SMP */
#include <asm-generic/rwonce.h>
#endif /* __ASM_RWONCE_H */