1 // SPDX-License-Identifier: BSD-2-Clause
2 /*
3 * Copyright (c) 2013 EMC Corp.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/types.h>
29 #include <sys/param.h>
30 #include <sys/counter.h>
31
32 #include <sys/byteorder.h>
33 #include <sys/lock.h>
34 #include <sys/freebsd_rwlock.h>
35 #include <sys/vm.h>
36
37 #include <vm/vm.h>
38 #include <vm/vm_param.h>
39 #include <vm/vm_object.h>
40 #include <vm/vm_page.h>
41 #include <vm/vm_pager.h>
42
43 const int zfs_vm_pagerret_bad = VM_PAGER_BAD;
44 const int zfs_vm_pagerret_error = VM_PAGER_ERROR;
45 const int zfs_vm_pagerret_ok = VM_PAGER_OK;
46 const int zfs_vm_pagerput_sync = VM_PAGER_PUT_SYNC;
47 const int zfs_vm_pagerput_inval = VM_PAGER_PUT_INVAL;
48
49 void
zfs_vmobject_assert_wlocked(vm_object_t object)50 zfs_vmobject_assert_wlocked(vm_object_t object)
51 {
52
53 /*
54 * This is not ideal because FILE/LINE used by assertions will not
55 * be too helpful, but it must be an hard function for
56 * compatibility reasons.
57 */
58 VM_OBJECT_ASSERT_WLOCKED(object);
59 }
60
61 void
zfs_vmobject_wlock(vm_object_t object)62 zfs_vmobject_wlock(vm_object_t object)
63 {
64
65 VM_OBJECT_WLOCK(object);
66 }
67
68 void
zfs_vmobject_wunlock(vm_object_t object)69 zfs_vmobject_wunlock(vm_object_t object)
70 {
71
72 VM_OBJECT_WUNLOCK(object);
73 }
74