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

     /*      $NetBSD: uvm_loan.h,v 1.17 2011/02/02 15:13:34 chuck Exp $      */
     
     /*
      * Copyright (c) 1997 Charles D. Cranor and Washington University.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * from: Id: uvm_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp
     */
    
    #ifndef _UVM_UVM_LOAN_H_
    #define _UVM_UVM_LOAN_H_
    
    #ifdef _KERNEL
    
    /*
     * flags for uvm_loan()
     */
    
    #define UVM_LOAN_TOANON         0x1             /* loan to anon */
    #define UVM_LOAN_TOPAGE         0x2             /* loan to page */
    
    /*
     * loan prototypes
     */
    
    void uvm_loan_init(void);
    int uvm_loan(struct vm_map *, vaddr_t, vsize_t, void *, int);
    void uvm_unloan(void *, int, int);
    int uvm_loanuobjpages(struct uvm_object *, voff_t, int,
        struct vm_page **);
    struct vm_page *uvm_loanbreak(struct vm_page *);
    int uvm_loanbreak_anon(struct vm_anon *, struct uvm_object *);
    
    #endif /* _KERNEL */
    
    #endif /* _UVM_UVM_LOAN_H_ */

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