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_pagerret_pend = VM_PAGER_PEND; 47 const int zfs_vm_pagerput_sync = VM_PAGER_PUT_SYNC; 48 const int zfs_vm_pagerput_inval = VM_PAGER_PUT_INVAL; 49 50 void 51 zfs_vmobject_assert_wlocked(vm_object_t object) 52 { 53 54 /* 55 * This is not ideal because FILE/LINE used by assertions will not 56 * be too helpful, but it must be an hard function for 57 * compatibility reasons. 58 */ 59 VM_OBJECT_ASSERT_WLOCKED(object); 60 } 61 62 void 63 zfs_vmobject_wlock(vm_object_t object) 64 { 65 66 VM_OBJECT_WLOCK(object); 67 } 68 69 void 70 zfs_vmobject_wunlock(vm_object_t object) 71 { 72 73 VM_OBJECT_WUNLOCK(object); 74 } 75