swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
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Tip revision: 7566ec393f4161572ba6f11ad5171fd5d59b0fbd authored by Linus Torvalds on 16 December 2018, 23:46:55 UTC
Linux 4.20-rc7
Tip revision: 7566ec3
switch_to.h
/* Generic task switch macro wrapper.
 *
 * It should be possible to use these on really simple architectures,
 * but it serves more as a starting point for new ports.
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#ifndef __ASM_GENERIC_SWITCH_TO_H
#define __ASM_GENERIC_SWITCH_TO_H

#include <linux/thread_info.h>

/*
 * Context switching is now performed out-of-line in switch_to.S
 */
extern struct task_struct *__switch_to(struct task_struct *,
				       struct task_struct *);

#define switch_to(prev, next, last)					\
	do {								\
		((last) = __switch_to((prev), (next)));			\
	} while (0)

#endif /* __ASM_GENERIC_SWITCH_TO_H */
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