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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUX_SLAB_H_
#define _LINUX_SLAB_H_
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <vm/uma.h>
#include <linux/types.h>
#include <linux/gfp.h>
MALLOC_DECLARE(M_KMALLOC);
#define kmalloc(size, flags) malloc((size), M_KMALLOC, (flags))
#define kvmalloc(size) kmalloc((size), 0)
#define kzalloc(size, flags) kmalloc((size), (flags) | M_ZERO)
#define kzalloc_node(size, flags, node) kzalloc(size, flags)
#define kfree(ptr) free(__DECONST(void *, (ptr)), M_KMALLOC)
#define krealloc(ptr, size, flags) realloc((ptr), (size), M_KMALLOC, (flags))
#define kcalloc(n, size, flags) kmalloc((n) * (size), flags | M_ZERO)
#define vzalloc(size) kzalloc(size, GFP_KERNEL | __GFP_NOWARN)
#define vfree(arg) kfree(arg)
#define kvfree(arg) kfree(arg)
#define vmalloc(size) kmalloc(size, GFP_KERNEL)
#define vmalloc_node(size, node) kmalloc(size, GFP_KERNEL)
struct kmem_cache {
uma_zone_t cache_zone;
void (*cache_ctor)(void *);
};
#define SLAB_HWCACHE_ALIGN 0x0001
static inline int
kmem_ctor(void *mem, int size, void *arg, int flags)
{
void (*ctor)(void *);
ctor = arg;
ctor(mem);
return (0);
}
static inline struct kmem_cache *
kmem_cache_create(char *name, size_t size, size_t align, u_long flags,
void (*ctor)(void *))
{
struct kmem_cache *c;
c = malloc(sizeof(*c), M_KMALLOC, M_WAITOK);
if (align)
align--;
if (flags & SLAB_HWCACHE_ALIGN)
align = UMA_ALIGN_CACHE;
c->cache_zone = uma_zcreate(name, size, ctor ? kmem_ctor : NULL,
NULL, NULL, NULL, align, 0);
c->cache_ctor = ctor;
return c;
}
static inline void *
kmem_cache_alloc(struct kmem_cache *c, int flags)
{
return uma_zalloc_arg(c->cache_zone, c->cache_ctor, flags);
}
static inline void
kmem_cache_free(struct kmem_cache *c, void *m)
{
uma_zfree(c->cache_zone, m);
}
static inline void
kmem_cache_destroy(struct kmem_cache *c)
{
uma_zdestroy(c->cache_zone);
free(c, M_KMALLOC);
}
#endif /* _LINUX_SLAB_H_ */
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