1/*- 2 * Copyright (c) 2013 EMC Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#ifndef _OPENSOLARIS_SYS_VM_H_ 30#define _OPENSOLARIS_SYS_VM_H_ 31 32#ifdef _KERNEL 33 34#include <sys/sf_buf.h> 35 36extern const int zfs_vm_pagerret_bad; 37extern const int zfs_vm_pagerret_error; 38extern const int zfs_vm_pagerret_ok; 39extern const int zfs_vm_pagerput_sync; 40extern const int zfs_vm_pagerput_inval; 41 42void zfs_vmobject_assert_wlocked(vm_object_t object); 43void zfs_vmobject_wlock(vm_object_t object); 44void zfs_vmobject_wunlock(vm_object_t object); 45 46static inline caddr_t 47zfs_map_page(vm_page_t pp, struct sf_buf **sfp) 48{ 49 *sfp = sf_buf_alloc(pp, 0); 50 return ((caddr_t)sf_buf_kva(*sfp)); 51} 52 53static inline void 54zfs_unmap_page(struct sf_buf *sf) 55{ 56 sf_buf_free(sf); 57} 58 59#endif /* _KERNEL */ 60 61#endif /* _OPENSOLARIS_SYS_VM_H_ */ 62