| uma.h (244024) | uma.h (247360) |
|---|---|
| 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 244024 2012-12-08 09:23:05Z pjd $ | 27 * $FreeBSD: head/sys/vm/uma.h 247360 2013-02-26 23:35:27Z attilio $ |
| 28 * 29 */ 30 31/* 32 * uma.h - External definitions for the Universal Memory Allocator 33 * 34*/ 35 --- 391 unchanged lines hidden (view full) --- 427 * align The alignment mask 428 * 429 * Returns: 430 * Nothing 431 */ 432void uma_set_align(int align); 433 434/* | 28 * 29 */ 30 31/* 32 * uma.h - External definitions for the Universal Memory Allocator 33 * 34*/ 35 --- 391 unchanged lines hidden (view full) --- 427 * align The alignment mask 428 * 429 * Returns: 430 * Nothing 431 */ 432void uma_set_align(int align); 433 434/* |
| 435 * Switches the backing object of a zone | 435 * Reserves the maximum KVA space required by the zone and configures the zone 436 * to use a VM_ALLOC_NOOBJ-based backend allocator. |
| 436 * 437 * Arguments: 438 * zone The zone to update. | 437 * 438 * Arguments: 439 * zone The zone to update. |
| 439 * obj The VM object to use for future allocations. 440 * size The size of the object to allocate. | 440 * nitems The upper limit on the number of items that can be allocated. |
| 441 * 442 * Returns: | 441 * 442 * Returns: |
| 443 * 0 if kva space can not be allocated | 443 * 0 if KVA space can not be allocated |
| 444 * 1 if successful 445 * 446 * Discussion: | 444 * 1 if successful 445 * 446 * Discussion: |
| 447 * A NULL object can be used and uma will allocate one for you. Setting 448 * the size will limit the amount of memory allocated to this zone. 449 * | 447 * When the machine supports a direct map and the zone's items are smaller 448 * than a page, the zone will use the direct map instead of allocating KVA 449 * space. |
| 450 */ | 450 */ |
| 451struct vm_object; 452int uma_zone_set_obj(uma_zone_t zone, struct vm_object *obj, int size); | 451int uma_zone_reserve_kva(uma_zone_t zone, int nitems); |
| 453 454/* 455 * Sets a high limit on the number of items allowed in a zone 456 * 457 * Arguments: 458 * zone The zone to limit 459 * nitems The requested upper limit on the number of items allowed 460 * --- 55 unchanged lines hidden (view full) --- 516 * specified Zone's bucket cache. These should probably not 517 * be changed once allocations have already begun, but only be set 518 * immediately upon zone creation. 519 */ 520void uma_zone_set_zinit(uma_zone_t zone, uma_init zinit); 521void uma_zone_set_zfini(uma_zone_t zone, uma_fini zfini); 522 523/* | 452 453/* 454 * Sets a high limit on the number of items allowed in a zone 455 * 456 * Arguments: 457 * zone The zone to limit 458 * nitems The requested upper limit on the number of items allowed 459 * --- 55 unchanged lines hidden (view full) --- 515 * specified Zone's bucket cache. These should probably not 516 * be changed once allocations have already begun, but only be set 517 * immediately upon zone creation. 518 */ 519void uma_zone_set_zinit(uma_zone_t zone, uma_init zinit); 520void uma_zone_set_zfini(uma_zone_t zone, uma_fini zfini); 521 522/* |
| 524 * Replaces the standard page_alloc or obj_alloc functions for this zone | 523 * Replaces the standard backend allocator for this zone. |
| 525 * 526 * Arguments: 527 * zone The zone whose backend allocator is being changed. 528 * allocf A pointer to the allocation function 529 * 530 * Returns: 531 * Nothing 532 * --- 122 unchanged lines hidden --- | 524 * 525 * Arguments: 526 * zone The zone whose backend allocator is being changed. 527 * allocf A pointer to the allocation function 528 * 529 * Returns: 530 * Nothing 531 * --- 122 unchanged lines hidden --- |