vm_fault.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        vm_fault.h,v $
   29  * Revision 2.6  91/05/18  14:40:15  rpd
   30  *      Added VM_FAULT_FICTITIOUS_SHORTAGE.
   31  *      [91/03/29            rpd]
   32  * 
   33  * Revision 2.5  91/05/14  17:48:59  mrt
   34  *      Correcting copyright
   35  * 
   36  * Revision 2.4  91/03/16  15:05:03  rpd
   37  *      Added vm_fault_init.
   38  *      [91/02/16            rpd]
   39  * 
   40  * Revision 2.3  91/02/05  17:58:12  mrt
   41  *      Changed to new Mach copyright
   42  *      [91/02/01  16:32:04  mrt]
   43  * 
   44  * Revision 2.2  90/02/22  20:05:32  dbg
   45  *      Add vm_fault_copy(), vm_fault_cleanup().  Remove
   46  *      vm_fault_copy_entry().
   47  *      [90/01/25            dbg]
   48  * 
   49  * Revision 2.1  89/08/03  16:44:57  rwd
   50  * Created.
   51  * 
   52  * Revision 2.6  89/04/18  21:25:22  mwyoung
   53  *      Reset history.
   54  *      [89/04/18            mwyoung]
   55  * 
   56  */
   57 /*
   58  *      File:   vm/vm_fault.h
   59  *
   60  *      Page fault handling module declarations.
   61  */
   62 
   63 #ifndef _VM_VM_FAULT_H_
   64 #define _VM_VM_FAULT_H_
   65 
   66 #include <mach/kern_return.h>
   67 
   68 /*
   69  *      Page fault handling based on vm_object only.
   70  */
   71 
   72 typedef kern_return_t   vm_fault_return_t;
   73 #define VM_FAULT_SUCCESS                0
   74 #define VM_FAULT_RETRY                  1
   75 #define VM_FAULT_INTERRUPTED            2
   76 #define VM_FAULT_MEMORY_SHORTAGE        3
   77 #define VM_FAULT_FICTITIOUS_SHORTAGE    4
   78 #define VM_FAULT_MEMORY_ERROR           5
   79 
   80 extern void vm_fault_init();
   81 extern vm_fault_return_t vm_fault_page();
   82 
   83 extern void             vm_fault_cleanup();
   84 /*
   85  *      Page fault handling based on vm_map (or entries therein)
   86  */
   87 
   88 extern kern_return_t    vm_fault();
   89 extern void             vm_fault_wire();
   90 extern void             vm_fault_unwire();
   91 
   92 extern kern_return_t    vm_fault_copy();        /* Copy pages from
   93                                                  * one object to another
   94                                                  */
   95 #endif  _VM_VM_FAULT_H_

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FreeBSD/Linux Kernel Cross Reference sys/vm/vm_fault.h

FreeBSD/Linux Kernel Cross Reference
sys/vm/vm_fault.h