The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/uvm/uvm_loan.h

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    1 /*      $NetBSD: uvm_loan.h,v 1.13 2004/03/24 07:55:01 junyoung Exp $   */
    2 
    3 /*
    4  *
    5  * Copyright (c) 1997 Charles D. Cranor and Washington University.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by Charles D. Cranor and
   19  *      Washington University.
   20  * 4. The name of the author may not be used to endorse or promote products
   21  *    derived from this software without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   33  *
   34  * from: Id: uvm_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp
   35  */
   36 
   37 #ifndef _UVM_UVM_LOAN_H_
   38 #define _UVM_UVM_LOAN_H_
   39 
   40 #ifdef _KERNEL
   41 
   42 /*
   43  * flags for uvm_loan()
   44  */
   45 
   46 #define UVM_LOAN_TOANON         0x1             /* loan to anon */
   47 #define UVM_LOAN_TOPAGE         0x2             /* loan to page */
   48 
   49 /*
   50  * loan prototypes
   51  */
   52 
   53 void uvm_loan_init(void);
   54 int uvm_loan(struct vm_map *, vaddr_t, vsize_t, void *, int);
   55 void uvm_unloan(void *, int, int);
   56 int uvm_loanuobjpages(struct uvm_object *, voff_t, int,
   57     struct vm_page **);
   58 struct vm_page *uvm_loanbreak(struct vm_page *);
   59 
   60 #endif /* _KERNEL */
   61 
   62 #endif /* _UVM_UVM_LOAN_H_ */

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