| vm_object.c (92511) | vm_object.c (92654) |
|---|---|
| 1/* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 47 unchanged lines hidden (view full) --- 56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 57 * School of Computer Science 58 * Carnegie Mellon University 59 * Pittsburgh PA 15213-3890 60 * 61 * any improvements or extensions that they make and grant Carnegie the 62 * rights to redistribute these changes. 63 * | 1/* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 47 unchanged lines hidden (view full) --- 56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 57 * School of Computer Science 58 * Carnegie Mellon University 59 * Pittsburgh PA 15213-3890 60 * 61 * any improvements or extensions that they make and grant Carnegie the 62 * rights to redistribute these changes. 63 * |
| 64 * $FreeBSD: head/sys/vm/vm_object.c 92511 2002-03-17 18:37:37Z alc $ | 64 * $FreeBSD: head/sys/vm/vm_object.c 92654 2002-03-19 09:11:49Z jeff $ |
| 65 */ 66 67/* 68 * Virtual memory object module. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> --- 69 unchanged lines hidden (view full) --- 142vm_object_t kmem_object; 143static struct vm_object kernel_object_store; 144static struct vm_object kmem_object_store; 145extern int vm_pageout_page_count; 146 147static long object_collapses; 148static long object_bypasses; 149static int next_index; | 65 */ 66 67/* 68 * Virtual memory object module. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> --- 69 unchanged lines hidden (view full) --- 142vm_object_t kmem_object; 143static struct vm_object kernel_object_store; 144static struct vm_object kmem_object_store; 145extern int vm_pageout_page_count; 146 147static long object_collapses; 148static long object_bypasses; 149static int next_index; |
| 150static vm_zone_t obj_zone; 151static struct vm_zone obj_zone_store; | |
| 152static int object_hash_rand; | 150static int object_hash_rand; |
| 151static vm_zone_t obj_zone; |
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| 153#define VM_OBJECTS_INIT 256 | 152#define VM_OBJECTS_INIT 256 |
| 154static struct vm_object vm_objects_init[VM_OBJECTS_INIT]; | |
| 155 | 153 |
| 154static void vm_object_zinit(void *mem, int size); 155 156#ifdef INVARIANTS 157static void vm_object_zdtor(void *mem, int size, void *arg); 158 159static void 160vm_object_zdtor(void *mem, int size, void *arg) 161{ 162 vm_object_t object; 163 164 object = (vm_object_t)mem; 165 KASSERT(object->paging_in_progress == 0, 166 ("object %p paging_in_progress = %d", 167 object, object->paging_in_progress)); 168 KASSERT(object->resident_page_count == 0, 169 ("object %p resident_page_count = %d", 170 object, object->resident_page_count)); 171 KASSERT(object->shadow_count == 0, 172 ("object %p shadow_count = %d", 173 object, object->shadow_count)); 174} 175#endif 176 177static void 178vm_object_zinit(void *mem, int size) 179{ 180 vm_object_t object; 181 182 object = (vm_object_t)mem; 183 184 /* These are true for any object that has been freed */ 185 object->paging_in_progress = 0; 186 object->resident_page_count = 0; 187 object->shadow_count = 0; 188} 189 |
|
| 156void 157_vm_object_allocate(objtype_t type, vm_size_t size, vm_object_t object) 158{ 159 int incr; 160 161 GIANT_REQUIRED; 162 163 TAILQ_INIT(&object->memq); 164 TAILQ_INIT(&object->shadow_head); 165 166 object->type = type; 167 object->size = size; 168 object->ref_count = 1; 169 object->flags = 0; 170 if ((object->type == OBJT_DEFAULT) || (object->type == OBJT_SWAP)) 171 vm_object_set_flag(object, OBJ_ONEMAPPING); | 190void 191_vm_object_allocate(objtype_t type, vm_size_t size, vm_object_t object) 192{ 193 int incr; 194 195 GIANT_REQUIRED; 196 197 TAILQ_INIT(&object->memq); 198 TAILQ_INIT(&object->shadow_head); 199 200 object->type = type; 201 object->size = size; 202 object->ref_count = 1; 203 object->flags = 0; 204 if ((object->type == OBJT_DEFAULT) || (object->type == OBJT_SWAP)) 205 vm_object_set_flag(object, OBJ_ONEMAPPING); |
| 172 object->paging_in_progress = 0; 173 object->resident_page_count = 0; 174 object->shadow_count = 0; | |
| 175 object->pg_color = next_index; 176 if (size > (PQ_L2_SIZE / 3 + PQ_PRIME1)) 177 incr = PQ_L2_SIZE / 3 + PQ_PRIME1; 178 else 179 incr = size; 180 next_index = (next_index + incr) & PQ_L2_MASK; 181 object->handle = NULL; 182 object->backing_object = NULL; --- 28 unchanged lines hidden (view full) --- 211 212 kernel_object = &kernel_object_store; 213 _vm_object_allocate(OBJT_DEFAULT, OFF_TO_IDX(VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS), 214 kernel_object); 215 216 kmem_object = &kmem_object_store; 217 _vm_object_allocate(OBJT_DEFAULT, OFF_TO_IDX(VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS), 218 kmem_object); | 206 object->pg_color = next_index; 207 if (size > (PQ_L2_SIZE / 3 + PQ_PRIME1)) 208 incr = PQ_L2_SIZE / 3 + PQ_PRIME1; 209 else 210 incr = size; 211 next_index = (next_index + incr) & PQ_L2_MASK; 212 object->handle = NULL; 213 object->backing_object = NULL; --- 28 unchanged lines hidden (view full) --- 242 243 kernel_object = &kernel_object_store; 244 _vm_object_allocate(OBJT_DEFAULT, OFF_TO_IDX(VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS), 245 kernel_object); 246 247 kmem_object = &kmem_object_store; 248 _vm_object_allocate(OBJT_DEFAULT, OFF_TO_IDX(VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS), 249 kmem_object); |
| 219 220 obj_zone = &obj_zone_store; 221 zbootinit(obj_zone, "VM OBJECT", sizeof (struct vm_object), 222 vm_objects_init, VM_OBJECTS_INIT); | 250 obj_zone = uma_zcreate("VM OBJECT", sizeof (struct vm_object), NULL, 251#ifdef INVARIANTS 252 vm_object_zdtor, 253#else 254 NULL, 255#endif 256 vm_object_zinit, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 257 uma_prealloc(obj_zone, VM_OBJECTS_INIT); |
| 223} 224 225void 226vm_object_init2(void) 227{ | 258} 259 260void 261vm_object_init2(void) 262{ |
| 228 zinitna(obj_zone, NULL, NULL, 0, 0, 0, 1); | |
| 229} 230 231void 232vm_object_set_flag(vm_object_t object, u_short bits) 233{ 234 GIANT_REQUIRED; 235 object->flags |= bits; 236} --- 1764 unchanged lines hidden --- | 263} 264 265void 266vm_object_set_flag(vm_object_t object, u_short bits) 267{ 268 GIANT_REQUIRED; 269 object->flags |= bits; 270} --- 1764 unchanged lines hidden --- |