Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/vm/vnode_pager.h
Version:
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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 * $FreeBSD: releng/12.0/sys/vm/vnode_pager.h 326023 2017-11-20 19:43:44Z pfg $ 38 */ 39 40 #ifndef _VNODE_PAGER_ 41 #define _VNODE_PAGER_ 1 42 43 #ifdef _KERNEL 44 45 int vnode_pager_generic_getpages(struct vnode *vp, vm_page_t *m, 46 int count, int *rbehind, int *rahead, vop_getpages_iodone_t iodone, 47 void *arg); 48 int vnode_pager_generic_putpages(struct vnode *vp, vm_page_t *m, 49 int count, int flags, int *rtvals); 50 int vnode_pager_local_getpages(struct vop_getpages_args *ap); 51 int vnode_pager_local_getpages_async(struct vop_getpages_async_args *ap); 52 int vnode_pager_putpages_ioflags(int pager_flags); 53 void vnode_pager_release_writecount(vm_object_t object, vm_offset_t start, 54 vm_offset_t end); 55 void vnode_pager_undirty_pages(vm_page_t *ma, int *rtvals, int written, 56 off_t eof, int lpos); 57 void vnode_pager_update_writecount(vm_object_t object, vm_offset_t start, 58 vm_offset_t end); 59 60 #endif /* _KERNEL */ 61 #endif /* _VNODE_PAGER_ */
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