| uma.h (249313) | uma.h (251826) |
|---|---|
| 1/*- 2 * Copyright (c) 2002, 2003, 2004, 2005 Jeffrey Roberson <jeff@FreeBSD.org> 3 * Copyright (c) 2004, 2005 Bosko Milekic <bmilekic@FreeBSD.org> 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: --- 10 unchanged lines hidden (view full) --- 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * | 1/*- 2 * Copyright (c) 2002, 2003, 2004, 2005 Jeffrey Roberson <jeff@FreeBSD.org> 3 * Copyright (c) 2004, 2005 Bosko Milekic <bmilekic@FreeBSD.org> 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: --- 10 unchanged lines hidden (view full) --- 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * |
| 27 * $FreeBSD: head/sys/vm/uma.h 249313 2013-04-09 17:43:48Z glebius $ | 27 * $FreeBSD: head/sys/vm/uma.h 251826 2013-06-17 03:43:47Z jeff $ |
| 28 * 29 */ 30 31/* 32 * uma.h - External definitions for the Universal Memory Allocator 33 * 34*/ 35 --- 83 unchanged lines hidden (view full) --- 119 * 120 * Discussion: 121 * This routine is called when memory leaves a zone and is returned to the 122 * system for other uses. It is the counter-part to the init function. 123 */ 124typedef void (*uma_fini)(void *mem, int size); 125 126/* | 28 * 29 */ 30 31/* 32 * uma.h - External definitions for the Universal Memory Allocator 33 * 34*/ 35 --- 83 unchanged lines hidden (view full) --- 119 * 120 * Discussion: 121 * This routine is called when memory leaves a zone and is returned to the 122 * system for other uses. It is the counter-part to the init function. 123 */ 124typedef void (*uma_fini)(void *mem, int size); 125 126/* |
| 127 * Import new memory into a cache zone. 128 */ 129typedef int (*uma_import)(void *arg, void **store, int count, int flags); 130 131/* 132 * Free memory from a cache zone. 133 */ 134typedef void (*uma_release)(void *arg, void **store, int count); 135 136/* |
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| 127 * What's the difference between initializing and constructing? 128 * 129 * The item is initialized when it is cached, and this is the state that the 130 * object should be in when returned to the allocator. The purpose of this is 131 * to remove some code which would otherwise be called on each allocation by 132 * utilizing a known, stable state. This differs from the constructor which 133 * will be called on EVERY allocation. 134 * --- 76 unchanged lines hidden (view full) --- 211 * the only supported. 212 * 213 * Returns: 214 * Error on failure, 0 on success. 215 */ 216int uma_zsecond_add(uma_zone_t zone, uma_zone_t master); 217 218/* | 137 * What's the difference between initializing and constructing? 138 * 139 * The item is initialized when it is cached, and this is the state that the 140 * object should be in when returned to the allocator. The purpose of this is 141 * to remove some code which would otherwise be called on each allocation by 142 * utilizing a known, stable state. This differs from the constructor which 143 * will be called on EVERY allocation. 144 * --- 76 unchanged lines hidden (view full) --- 221 * the only supported. 222 * 223 * Returns: 224 * Error on failure, 0 on success. 225 */ 226int uma_zsecond_add(uma_zone_t zone, uma_zone_t master); 227 228/* |
| 229 * Create cache-only zones. 230 * 231 * This allows uma's per-cpu cache facilities to handle arbitrary 232 * pointers. Consumers must specify the import and release functions to 233 * fill and destroy caches. UMA does not allocate any memory for these 234 * zones. The 'arg' parameter is passed to import/release and is caller 235 * specific. 236 */ 237uma_zone_t uma_zcache_create(char *name, uma_ctor ctor, uma_dtor dtor, 238 uma_init zinit, uma_fini zfini, uma_import zimport, 239 uma_release zrelease, void *arg, int flags); 240 241/* |
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| 219 * Definitions for uma_zcreate flags 220 * 221 * These flags share space with UMA_ZFLAGs in uma_int.h. Be careful not to 222 * overlap when adding new features. 0xf0000000 is in use by uma_int.h. 223 */ 224#define UMA_ZONE_PAGEABLE 0x0001 /* Return items not fully backed by 225 physical memory XXX Not yet */ 226#define UMA_ZONE_ZINIT 0x0002 /* Initialize with zeros */ --- 431 unchanged lines hidden --- | 242 * Definitions for uma_zcreate flags 243 * 244 * These flags share space with UMA_ZFLAGs in uma_int.h. Be careful not to 245 * overlap when adding new features. 0xf0000000 is in use by uma_int.h. 246 */ 247#define UMA_ZONE_PAGEABLE 0x0001 /* Return items not fully backed by 248 physical memory XXX Not yet */ 249#define UMA_ZONE_ZINIT 0x0002 /* Initialize with zeros */ --- 431 unchanged lines hidden --- |