phys_pager.c (9b4fcf851a73554063d4a2de9a4f10cd23a0a4f6) phys_pager.c (89f6b8632cc94bca2738b4fcc26e1189ef4f5dde)
1/*-
2 * Copyright (c) 2000 Peter Wemm
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.

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29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/conf.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/proc.h>
35#include <sys/mutex.h>
36#include <sys/mman.h>
1/*-
2 * Copyright (c) 2000 Peter Wemm
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.

--- 20 unchanged lines hidden (view full) ---

29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/conf.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/proc.h>
35#include <sys/mutex.h>
36#include <sys/mman.h>
37#include <sys/rwlock.h>
37#include <sys/sysctl.h>
38
39#include <vm/vm.h>
40#include <vm/vm_object.h>
41#include <vm/vm_page.h>
42#include <vm/vm_pager.h>
43
44/* list of phys pager objects */

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118/*
119 * MPSAFE
120 */
121static void
122phys_pager_dealloc(vm_object_t object)
123{
124
125 if (object->handle != NULL) {
38#include <sys/sysctl.h>
39
40#include <vm/vm.h>
41#include <vm/vm_object.h>
42#include <vm/vm_page.h>
43#include <vm/vm_pager.h>
44
45/* list of phys pager objects */

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119/*
120 * MPSAFE
121 */
122static void
123phys_pager_dealloc(vm_object_t object)
124{
125
126 if (object->handle != NULL) {
126 VM_OBJECT_UNLOCK(object);
127 VM_OBJECT_WUNLOCK(object);
127 mtx_lock(&phys_pager_mtx);
128 TAILQ_REMOVE(&phys_pager_object_list, object, pager_object_list);
129 mtx_unlock(&phys_pager_mtx);
128 mtx_lock(&phys_pager_mtx);
129 TAILQ_REMOVE(&phys_pager_object_list, object, pager_object_list);
130 mtx_unlock(&phys_pager_mtx);
130 VM_OBJECT_LOCK(object);
131 VM_OBJECT_WLOCK(object);
131 }
132}
133
134/*
135 * Fill as many pages as vm_fault has allocated for us.
136 */
137static int
138phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int reqpage)
139{
140 int i;
141
132 }
133}
134
135/*
136 * Fill as many pages as vm_fault has allocated for us.
137 */
138static int
139phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int reqpage)
140{
141 int i;
142
142 VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
143 VM_OBJECT_ASSERT_WLOCKED(object);
143 for (i = 0; i < count; i++) {
144 if (m[i]->valid == 0) {
145 if ((m[i]->flags & PG_ZERO) == 0)
146 pmap_zero_page(m[i]);
147 m[i]->valid = VM_PAGE_BITS_ALL;
148 }
149 KASSERT(m[i]->valid == VM_PAGE_BITS_ALL,
150 ("phys_pager_getpages: partially valid page %p", m[i]));

--- 52 unchanged lines hidden --- 		144 for (i = 0; i < count; i++) {
145 if (m[i]->valid == 0) {
146 if ((m[i]->flags & PG_ZERO) == 0)
147 pmap_zero_page(m[i]);
148 m[i]->valid = VM_PAGE_BITS_ALL;
149 }
150 KASSERT(m[i]->valid == VM_PAGE_BITS_ALL,
151 ("phys_pager_getpages: partially valid page %p", m[i]));

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