1/*-
 2 * SPDX-License-Identifier: BSD-3-Clause
 3 *
 4 * Copyright (c) 1990 University of Utah.
 5 * Copyright (c) 1991, 1993
 6 *	The Regents of the University of California.  All rights reserved.
 7 *
 8 * This code is derived from software contributed to Berkeley by
 9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)vnode_pager.h	8.1 (Berkeley) 6/11/93
37 */
38
39#ifndef	_VNODE_PAGER_
40#define	_VNODE_PAGER_	1
41
42#ifdef _KERNEL
43
44struct vnode;
45void vnode_pager_clean_sync(struct vnode *vp);
46void vnode_pager_clean_async(struct vnode *vp);
47int vnode_pager_generic_getpages(struct vnode *vp, vm_page_t *m,
48    int count, int *rbehind, int *rahead, vop_getpages_iodone_t iodone,
49    void *arg);
50int vnode_pager_generic_putpages(struct vnode *vp, vm_page_t *m,
51    int count, int flags, int *rtvals);
52int vnode_pager_local_getpages(struct vop_getpages_args *ap);
53int vnode_pager_local_getpages_async(struct vop_getpages_async_args *ap);
54int vnode_pager_putpages_ioflags(int pager_flags);
55void vnode_pager_undirty_pages(vm_page_t *ma, int *rtvals, int written,
56    off_t eof, int lpos);
57
58#endif				/* _KERNEL */
59#endif				/* _VNODE_PAGER_ */