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-rw-r--r--sys/compat/linuxkpi/common/include/linux/slab.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/slab.h b/sys/compat/linuxkpi/common/include/linux/slab.h
new file mode 100644
index 000000000000..1b56b555f44e
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/slab.h
@@ -0,0 +1,112 @@
+/*-
+ * 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.
+ *
+ * $FreeBSD$
+ */
+#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_ */