fc8ec0b896
by Andrew Doran some of it by me. This is still work in progress code. There are known issues. Zfs can panic your system still. I will commit integration bits and needed kernel bits later when we fix most obvious bugs. This code need some support from our kernel which I will commit in a separate patch and therefore itnot work yet. Issues: 1) Support for openat/fstatat syscalls. 2) getnewvnode locking against myself panic when reclaiming vnodes 3) Replace solaris taskq with our workqueue which doesn't need to alloc anything during work. 4) Investigate problems with NO_WAIT allocations. Oked by core@ and ad@.
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* $NetBSD: umem.h,v 1.1 2009/08/07 20:57:55 haad Exp $ */
|
|
|
|
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License, Version 1.0 only
|
|
* (the "License"). You may not use this file except in compliance
|
|
* with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#ifndef _UMEM_H
|
|
#define _UMEM_H
|
|
|
|
|
|
|
|
#include <sys/types.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define UMEM_DEFAULT 0x0000 /* normal -- may fail */
|
|
#define UMEM_NOFAIL 0x0100 /* Never fails -- may call exit(2) */
|
|
|
|
#define UMEM_FLAGS 0xffff /* all settable umem flags */
|
|
|
|
extern void *umem_alloc(size_t, int);
|
|
extern void *umem_alloc_align(size_t, size_t, int);
|
|
extern void *umem_zalloc(size_t, int);
|
|
extern void umem_free(void *, size_t);
|
|
extern void umem_free_align(void *, size_t);
|
|
|
|
/*
|
|
* Flags for umem_cache_create()
|
|
*/
|
|
#define UMC_NOTOUCH 0x00010000
|
|
#define UMC_NODEBUG 0x00020000
|
|
#define UMC_NOMAGAZINE 0x00040000
|
|
#define UMC_NOHASH 0x00080000
|
|
|
|
struct umem_cache; /* cache structure is opaque to umem clients */
|
|
|
|
typedef struct umem_cache umem_cache_t;
|
|
typedef int umem_constructor_t(void *, void *, int);
|
|
typedef void umem_destructor_t(void *, void *);
|
|
typedef void umem_reclaim_t(void *);
|
|
|
|
typedef int umem_nofail_callback_t(void);
|
|
#define UMEM_CALLBACK_RETRY 0
|
|
#define UMEM_CALLBACK_EXIT(status) (0x100 | ((status) & 0xFF))
|
|
|
|
extern void umem_nofail_callback(umem_nofail_callback_t *);
|
|
|
|
extern umem_cache_t *umem_cache_create(char *, size_t,
|
|
size_t, umem_constructor_t *, umem_destructor_t *, umem_reclaim_t *,
|
|
void *, void *, int);
|
|
extern void umem_cache_destroy(umem_cache_t *);
|
|
|
|
extern void *umem_cache_alloc(umem_cache_t *, int);
|
|
extern void umem_cache_free(umem_cache_t *, void *);
|
|
|
|
extern void umem_reap(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _UMEM_H */
|