https://github.com/torvalds/linux
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Tip revision: bf05bf16c76bb44ab5156223e1e58e26dfe30a88 authored by Linus Torvalds on 18 April 2021, 21:45:32 UTC
Linux 5.12-rc8
Tip revision: bf05bf1
sync_core.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SYNC_CORE_H
#define _LINUX_SYNC_CORE_H

#ifdef CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
#include <asm/sync_core.h>
#else
/*
 * This is a dummy sync_core_before_usermode() implementation that can be used
 * on all architectures which return to user-space through core serializing
 * instructions.
 * If your architecture returns to user-space through non-core-serializing
 * instructions, you need to write your own functions.
 */
static inline void sync_core_before_usermode(void)
{
}
#endif

#endif /* _LINUX_SYNC_CORE_H */

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