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158bc507c2
Split the switch_to() wrapper out of asm-generic/system.h into its own asm-generic/system.h as part of the asm/system.h disintegration. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
31 lines
992 B
C
31 lines
992 B
C
/* Generic task switch macro wrapper, based on MN10300 definitions.
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*
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* It should be possible to use these on really simple architectures,
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* but it serves more as a starting point for new ports.
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#ifndef __ASM_GENERIC_SWITCH_TO_H
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#define __ASM_GENERIC_SWITCH_TO_H
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#include <linux/thread_info.h>
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/*
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* Context switching is now performed out-of-line in switch_to.S
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*/
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extern struct task_struct *__switch_to(struct task_struct *,
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struct task_struct *);
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#define switch_to(prev, next, last) \
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do { \
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((last) = __switch_to((prev), (next))); \
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} while (0)
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#endif /* __ASM_GENERIC_SWITCH_TO_H */
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