2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef _LINUX_SLAB_H_
29 #define _LINUX_SLAB_H_
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/malloc.h>
36 #include <linux/types.h>
37 #include <linux/gfp.h>
39 MALLOC_DECLARE(M_KMALLOC);
41 #define kmalloc(size, flags) malloc((size), M_KMALLOC, (flags))
42 #define kzalloc(size, flags) kmalloc((size), (flags) | M_ZERO)
43 #define kfree(ptr) free(__DECONST(void *, (ptr)), M_KMALLOC)
44 #define krealloc(ptr, size, flags) realloc((ptr), (size), M_KMALLOC, (flags))
45 #define kcalloc(n, size, flags) kmalloc((n) * (size), flags | M_ZERO)
48 uma_zone_t cache_zone;
49 void (*cache_ctor)(void *);
52 #define SLAB_HWCACHE_ALIGN 0x0001
55 kmem_ctor(void *mem, int size, void *arg, int flags)
65 static inline struct kmem_cache *
66 kmem_cache_create(char *name, size_t size, size_t align, u_long flags,
71 c = malloc(sizeof(*c), M_KMALLOC, M_WAITOK);
74 if (flags & SLAB_HWCACHE_ALIGN)
75 align = UMA_ALIGN_CACHE;
76 c->cache_zone = uma_zcreate(name, size, ctor ? kmem_ctor : NULL,
77 NULL, NULL, NULL, align, 0);
84 kmem_cache_alloc(struct kmem_cache *c, int flags)
86 return uma_zalloc_arg(c->cache_zone, c->cache_ctor, flags);
90 kmem_cache_free(struct kmem_cache *c, void *m)
92 uma_zfree(c->cache_zone, m);
96 kmem_cache_destroy(struct kmem_cache *c)
98 uma_zdestroy(c->cache_zone);
102 #endif /* _LINUX_SLAB_H_ */