mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
751221fd32
Eliminate a lot of checkes to make sure requests are not cross-device which is unnecessary with the new layout. We know a sequential request cannot possibly be cross-device because there is a reserved page between the devices. Remove a couple of comments which no longer are relevant.
60 lines
2.6 KiB
C
60 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 1990 University of Utah.
|
|
* Copyright (c) 1991 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* the Systems Programming Group of the University of Utah Computer
|
|
* Science Department.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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: @(#)swap_pager.h 7.1 (Berkeley) 12/5/90
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _VM_SWAP_PAGER_H_
|
|
#define _VM_SWAP_PAGER_H_ 1
|
|
|
|
#ifdef _KERNEL
|
|
|
|
extern int swap_pager_full;
|
|
extern int swap_pager_avail;
|
|
|
|
struct swdevt;
|
|
void swap_pager_copy(vm_object_t, vm_object_t, vm_pindex_t, int);
|
|
void swap_pager_freespace(vm_object_t, vm_pindex_t, vm_size_t);
|
|
void swap_pager_swap_init(void);
|
|
int swap_pager_isswapped(vm_object_t, struct swdevt *);
|
|
int swap_pager_reserve(vm_object_t, vm_pindex_t, vm_size_t);
|
|
void swap_pager_status(int *total, int *used);
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* _VM_SWAP_PAGER_H_ */
|