1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5219820Sjeff * All rights reserved. 6219820Sjeff * 7219820Sjeff * Redistribution and use in source and binary forms, with or without 8219820Sjeff * modification, are permitted provided that the following conditions 9219820Sjeff * are met: 10219820Sjeff * 1. Redistributions of source code must retain the above copyright 11219820Sjeff * notice unmodified, this list of conditions, and the following 12219820Sjeff * disclaimer. 13219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 14219820Sjeff * notice, this list of conditions and the following disclaimer in the 15219820Sjeff * documentation and/or other materials provided with the distribution. 16219820Sjeff * 17219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27219820Sjeff */ 28219820Sjeff#ifndef _LINUX_SLAB_H_ 29219820Sjeff#define _LINUX_SLAB_H_ 30219820Sjeff 31219820Sjeff#include <sys/param.h> 32219820Sjeff#include <sys/systm.h> 33219820Sjeff#include <sys/malloc.h> 34219820Sjeff#include <vm/uma.h> 35219820Sjeff 36219820Sjeff#include <linux/types.h> 37219820Sjeff#include <linux/gfp.h> 38219820Sjeff 39219820SjeffMALLOC_DECLARE(M_KMALLOC); 40219820Sjeff 41219820Sjeff#define kmalloc(size, flags) malloc((size), M_KMALLOC, (flags)) 42219820Sjeff#define kzalloc(size, flags) kmalloc((size), (flags) | M_ZERO) 43219820Sjeff#define kfree(ptr) free(__DECONST(void *, (ptr)), M_KMALLOC) 44219820Sjeff#define krealloc(ptr, size, flags) realloc((ptr), (size), M_KMALLOC, (flags)) 45219820Sjeff#define kcalloc(n, size, flags) kmalloc((n) * (size), flags | M_ZERO) 46219820Sjeff 47219820Sjeffstruct kmem_cache { 48219820Sjeff uma_zone_t cache_zone; 49219820Sjeff void (*cache_ctor)(void *); 50219820Sjeff}; 51219820Sjeff 52219820Sjeff#define SLAB_HWCACHE_ALIGN 0x0001 53219820Sjeff 54219820Sjeffstatic inline int 55219820Sjeffkmem_ctor(void *mem, int size, void *arg, int flags) 56219820Sjeff{ 57219820Sjeff void (*ctor)(void *); 58219820Sjeff 59219820Sjeff ctor = arg; 60219820Sjeff ctor(mem); 61219820Sjeff 62219820Sjeff return (0); 63219820Sjeff} 64219820Sjeff 65219820Sjeffstatic inline struct kmem_cache * 66219820Sjeffkmem_cache_create(char *name, size_t size, size_t align, u_long flags, 67219820Sjeff void (*ctor)(void *)) 68219820Sjeff{ 69219820Sjeff struct kmem_cache *c; 70219820Sjeff 71219820Sjeff c = malloc(sizeof(*c), M_KMALLOC, M_WAITOK); 72219820Sjeff if (align) 73219820Sjeff align--; 74219820Sjeff if (flags & SLAB_HWCACHE_ALIGN) 75219820Sjeff align = UMA_ALIGN_CACHE; 76219820Sjeff c->cache_zone = uma_zcreate(name, size, ctor ? kmem_ctor : NULL, 77219820Sjeff NULL, NULL, NULL, align, 0); 78219820Sjeff c->cache_ctor = ctor; 79219820Sjeff 80219820Sjeff return c; 81219820Sjeff} 82219820Sjeff 83219820Sjeffstatic inline void * 84219820Sjeffkmem_cache_alloc(struct kmem_cache *c, int flags) 85219820Sjeff{ 86219820Sjeff return uma_zalloc_arg(c->cache_zone, c->cache_ctor, flags); 87219820Sjeff} 88219820Sjeff 89219820Sjeffstatic inline void 90219820Sjeffkmem_cache_free(struct kmem_cache *c, void *m) 91219820Sjeff{ 92219820Sjeff uma_zfree(c->cache_zone, m); 93219820Sjeff} 94219820Sjeff 95219820Sjeffstatic inline void 96219820Sjeffkmem_cache_destroy(struct kmem_cache *c) 97219820Sjeff{ 98219820Sjeff uma_zdestroy(c->cache_zone); 99219820Sjeff free(c, M_KMALLOC); 100219820Sjeff} 101219820Sjeff 102219820Sjeff#endif /* _LINUX_SLAB_H_ */ 103