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#include <sys/sf_buf.h>
33
34extern const int zfs_vm_pagerret_bad;
35extern const int zfs_vm_pagerret_error;
36extern const int zfs_vm_pagerret_ok;
37extern const int zfs_vm_pagerput_sync;
38extern const int zfs_vm_pagerput_inval;
39
40void	zfs_vmobject_assert_wlocked(vm_object_t object);
41void	zfs_vmobject_wlock(vm_object_t object);
42void	zfs_vmobject_wunlock(vm_object_t object);
43
44#if __FreeBSD_version >= 1300081
45#define	zfs_vmobject_assert_wlocked_12(x)
46#define	zfs_vmobject_wlock_12(x)
47#define	zfs_vmobject_wunlock_12(x)
48#else
49#define	zfs_vmobject_assert_wlocked_12(x)		\
50	zfs_vmobject_assert_wlocked((x))
51#define	zfs_vmobject_wlock_12(x)				\
52	zfs_vmobject_wlock(x)
53#define	zfs_vmobject_wunlock_12(x)				\
54	zfs_vmobject_wunlock(x)
55#define	vm_page_grab_unlocked(obj, idx, flags)	\
56	vm_page_grab((obj), (idx), (flags))
57#define	vm_page_grab_valid_unlocked(m, obj, idx, flags)	\
58	vm_page_grab_valid((m), (obj), (idx), (flags))
59#endif
60static inline caddr_t
61zfs_map_page(vm_page_t pp, struct sf_buf **sfp)
62{
63	*sfp = sf_buf_alloc(pp, 0);
64	return ((caddr_t)sf_buf_kva(*sfp));
65}
66
67static inline void
68zfs_unmap_page(struct sf_buf *sf)
69{
70	sf_buf_free(sf);
71}
72
73#endif	/* _OPENSOLARIS_SYS_VM_H_ */
74