e03e9e8086
doing a cpu_set_kpc(), just pass the entry point and argument all the way down the fork path starting with fork1(). In order to avoid special-casing the normal fork in every cpu_fork(), MI code passes down child_return() and the child process pointer explicitly. This fixes a race condition on multiprocessor systems; a CPU could grab the newly created processes (which has been placed on a run queue) before cpu_set_kpc() would be performed.
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/* $NetBSD: vm_extern.h,v 1.48 2000/05/28 05:49:06 thorpej Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)vm_extern.h 8.5 (Berkeley) 5/3/95
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*/
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#ifndef _VM_VM_EXTERN_H_
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#define _VM_VM_EXTERN_H_
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struct buf;
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struct loadavg;
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struct proc;
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struct pmap;
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struct vmspace;
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struct vmtotal;
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struct mount;
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struct vnode;
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struct core;
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#ifdef _KERNEL
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/* Machine dependent portion */
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void vmapbuf __P((struct buf *, vsize_t));
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void vunmapbuf __P((struct buf *, vsize_t));
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void pagemove __P((caddr_t, caddr_t, size_t));
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#ifndef cpu_swapin
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void cpu_swapin __P((struct proc *));
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#endif
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#ifndef cpu_swapout
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void cpu_swapout __P((struct proc *));
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#endif
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#endif
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#endif /* !_VM_VM_EXTERN_H_ */
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