slab.h revision 271127
1246149Ssjg/*- 2246149Ssjg * Copyright (c) 2010 Isilon Systems, Inc. 3246149Ssjg * Copyright (c) 2010 iX Systems, Inc. 4246149Ssjg * Copyright (c) 2010 Panasas, Inc. 5246149Ssjg * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6246149Ssjg * All rights reserved. 7246149Ssjg * 8246149Ssjg * Redistribution and use in source and binary forms, with or without 9246149Ssjg * modification, are permitted provided that the following conditions 10246149Ssjg * are met: 11246149Ssjg * 1. Redistributions of source code must retain the above copyright 12246149Ssjg * notice unmodified, this list of conditions, and the following 13246149Ssjg * disclaimer. 14246149Ssjg * 2. Redistributions in binary form must reproduce the above copyright 15246149Ssjg * notice, this list of conditions and the following disclaimer in the 16246149Ssjg * documentation and/or other materials provided with the distribution. 17246149Ssjg * 18246149Ssjg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19246149Ssjg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20246149Ssjg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21246149Ssjg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22246149Ssjg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23246149Ssjg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24246149Ssjg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25246149Ssjg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26246149Ssjg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27246149Ssjg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28246149Ssjg */ 29246149Ssjg#ifndef _LINUX_SLAB_H_ 30246149Ssjg#define _LINUX_SLAB_H_ 31246149Ssjg 32246149Ssjg#include <sys/param.h> 33246149Ssjg#include <sys/systm.h> 34246149Ssjg#include <sys/malloc.h> 35246149Ssjg#include <vm/uma.h> 36246149Ssjg 37246149Ssjg#include <linux/types.h> 38246149Ssjg#include <linux/gfp.h> 39246149Ssjg 40246149SsjgMALLOC_DECLARE(M_KMALLOC); 41246149Ssjg 42246149Ssjg#define kmalloc(size, flags) malloc((size), M_KMALLOC, (flags)) 43246149Ssjg#define kzalloc(size, flags) kmalloc((size), (flags) | M_ZERO) 44246149Ssjg#define kzalloc_node(size, flags, node) kzalloc(size, flags) 45246149Ssjg#define kfree(ptr) free(__DECONST(void *, (ptr)), M_KMALLOC) 46246149Ssjg#define krealloc(ptr, size, flags) realloc((ptr), (size), M_KMALLOC, (flags)) 47246149Ssjg#define kcalloc(n, size, flags) kmalloc((n) * (size), flags | M_ZERO) 48246149Ssjg#define vzalloc(size) kzalloc(size, GFP_KERNEL | __GFP_NOWARN) 49246149Ssjg#define vfree(arg) kfree(arg) 50246149Ssjg#define vmalloc(size) kmalloc(size, GFP_KERNEL) 51246149Ssjg#define vmalloc_node(size, node) kmalloc(size, GFP_KERNEL) 52246149Ssjg 53246149Ssjgstruct kmem_cache { 54246149Ssjg uma_zone_t cache_zone; 55246149Ssjg void (*cache_ctor)(void *); 56246149Ssjg}; 57246149Ssjg 58246149Ssjg#define SLAB_HWCACHE_ALIGN 0x0001 59246149Ssjg 60246149Ssjgstatic inline int 61246149Ssjgkmem_ctor(void *mem, int size, void *arg, int flags) 62246149Ssjg{ 63246149Ssjg void (*ctor)(void *); 64246149Ssjg 65246149Ssjg ctor = arg; 66246149Ssjg ctor(mem); 67246149Ssjg 68246149Ssjg return (0); 69246149Ssjg} 70246149Ssjg 71246149Ssjgstatic inline struct kmem_cache * 72246149Ssjgkmem_cache_create(char *name, size_t size, size_t align, u_long flags, 73246149Ssjg void (*ctor)(void *)) 74246149Ssjg{ 75246149Ssjg struct kmem_cache *c; 76246149Ssjg 77246149Ssjg c = malloc(sizeof(*c), M_KMALLOC, M_WAITOK); 78246149Ssjg if (align) 79246149Ssjg align--; 80246149Ssjg if (flags & SLAB_HWCACHE_ALIGN) 81246149Ssjg align = UMA_ALIGN_CACHE; 82246149Ssjg c->cache_zone = uma_zcreate(name, size, ctor ? kmem_ctor : NULL, 83246149Ssjg NULL, NULL, NULL, align, 0); 84246149Ssjg c->cache_ctor = ctor; 85246149Ssjg 86246149Ssjg return c; 87246149Ssjg} 88246149Ssjg 89246149Ssjgstatic inline void * 90246149Ssjgkmem_cache_alloc(struct kmem_cache *c, int flags) 91246149Ssjg{ 92246149Ssjg return uma_zalloc_arg(c->cache_zone, c->cache_ctor, flags); 93246149Ssjg} 94246149Ssjg 95246149Ssjgstatic inline void 96246149Ssjgkmem_cache_free(struct kmem_cache *c, void *m) 97246149Ssjg{ 98246149Ssjg uma_zfree(c->cache_zone, m); 99246149Ssjg} 100246149Ssjg 101246149Ssjgstatic inline void 102246149Ssjgkmem_cache_destroy(struct kmem_cache *c) 103246149Ssjg{ 104246149Ssjg uma_zdestroy(c->cache_zone); 105246149Ssjg free(c, M_KMALLOC); 106246149Ssjg} 107246149Ssjg 108246149Ssjg#endif /* _LINUX_SLAB_H_ */ 109246149Ssjg