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Annotation of sys/uvm/uvm_aobj.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: uvm_aobj.h,v 1.8 2002/03/14 01:27:18 millert Exp $    */
        !             2: /*     $NetBSD: uvm_aobj.h,v 1.10 2000/01/11 06:57:49 chs Exp $        */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1998 Chuck Silvers, Charles D. Cranor and
        !             6:  *                    Washington University.
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *      This product includes software developed by Charles D. Cranor and
        !            20:  *      Washington University.
        !            21:  * 4. The name of the author may not be used to endorse or promote products
        !            22:  *    derived from this software without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            25:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            26:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            27:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            28:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            29:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            30:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            31:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            32:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            33:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            34:  *
        !            35:  * from: Id: uvm_aobj.h,v 1.1.2.4 1998/02/06 05:19:28 chs Exp
        !            36:  */
        !            37: /*
        !            38:  * uvm_aobj.h: anonymous memory uvm_object pager
        !            39:  *
        !            40:  * author: Chuck Silvers <chuq@chuq.com>
        !            41:  * started: Jan-1998
        !            42:  *
        !            43:  * - design mostly from Chuck Cranor
        !            44:  */
        !            45:
        !            46: #ifndef _UVM_UVM_AOBJ_H_
        !            47: #define _UVM_UVM_AOBJ_H_
        !            48:
        !            49: /*
        !            50:  * flags
        !            51:  */
        !            52:
        !            53: /* flags for uao_create: can only be used one time (at bootup) */
        !            54: #define UAO_FLAG_KERNOBJ       0x1     /* create kernel object */
        !            55: #define UAO_FLAG_KERNSWAP      0x2     /* enable kernel swap */
        !            56:
        !            57: /* internal flags */
        !            58: #define UAO_FLAG_KILLME                0x4     /* aobj should die when last released
        !            59:                                         * page is no longer PG_BUSY ... */
        !            60: #define UAO_FLAG_NOSWAP                0x8     /* aobj can't swap (kernel obj only!) */
        !            61:
        !            62: #ifdef _KERNEL
        !            63:
        !            64: /*
        !            65:  * prototypes
        !            66:  */
        !            67:
        !            68: void uao_init(void);
        !            69: int uao_set_swslot(struct uvm_object *, int, int);
        !            70: void uao_dropswap(struct uvm_object *, int);
        !            71: int uao_swap_off(int, int);
        !            72:
        !            73: /*
        !            74:  * globals
        !            75:  */
        !            76:
        !            77: extern struct uvm_pagerops aobj_pager;
        !            78:
        !            79: #endif /* _KERNEL */
        !            80:
        !            81: #endif /* _UVM_UVM_AOBJ_H_ */