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:
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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 $
28 *
29 */
30
31/*
32 * uma.h - External definitions for the Universal Memory Allocator
33 *
34*/
35
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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 * 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 *
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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/*
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 */
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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 $
28 *
29 */
30
31/*
32 * uma.h - External definitions for the Universal Memory Allocator
33 *
34*/
35
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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 * 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 *
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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/*
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 */
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