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-rw-r--r--sys/compat/linuxkpi/common/include/linux/kobject.h171
1 files changed, 171 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/kobject.h b/sys/compat/linuxkpi/common/include/linux/kobject.h
new file mode 100644
index 000000000000..63fbc56b48bc
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/kobject.h
@@ -0,0 +1,171 @@
+/*-
+ * 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_KOBJECT_H_
+#define _LINUX_KOBJECT_H_
+
+#include <machine/stdarg.h>
+
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/slab.h>
+
+struct kobject;
+struct sysctl_oid;
+
+struct kobj_type {
+ void (*release)(struct kobject *kobj);
+ const struct sysfs_ops *sysfs_ops;
+ struct attribute **default_attrs;
+};
+
+extern struct kobj_type kfree_type;
+
+struct kobject {
+ struct kobject *parent;
+ char *name;
+ struct kref kref;
+ struct kobj_type *ktype;
+ struct list_head entry;
+ struct sysctl_oid *oidp;
+};
+
+extern struct kobject *mm_kobj;
+
+static inline void
+kobject_init(struct kobject *kobj, struct kobj_type *ktype)
+{
+
+ kref_init(&kobj->kref);
+ INIT_LIST_HEAD(&kobj->entry);
+ kobj->ktype = ktype;
+ kobj->oidp = NULL;
+}
+
+static inline void kobject_put(struct kobject *kobj);
+void kobject_release(struct kref *kref);
+
+static inline void
+kobject_put(struct kobject *kobj)
+{
+
+ if (kobj)
+ kref_put(&kobj->kref, kobject_release);
+}
+
+static inline struct kobject *
+kobject_get(struct kobject *kobj)
+{
+
+ if (kobj)
+ kref_get(&kobj->kref);
+ return kobj;
+}
+
+static inline int
+kobject_set_name_vargs(struct kobject *kobj, const char *fmt, va_list args)
+{
+ char *old;
+ char *name;
+
+ old = kobj->name;
+
+ if (old && !fmt)
+ return 0;
+
+ name = kzalloc(MAXPATHLEN, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+ vsnprintf(name, MAXPATHLEN, fmt, args);
+ kobj->name = name;
+ kfree(old);
+ for (; *name != '\0'; name++)
+ if (*name == '/')
+ *name = '!';
+ return (0);
+}
+
+int kobject_add(struct kobject *kobj, struct kobject *parent,
+ const char *fmt, ...);
+
+static inline struct kobject *
+kobject_create(void)
+{
+ struct kobject *kobj;
+
+ kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
+ if (kobj == NULL)
+ return (NULL);
+ kobject_init(kobj, &kfree_type);
+
+ return (kobj);
+}
+
+static inline struct kobject *
+kobject_create_and_add(const char *name, struct kobject *parent)
+{
+ struct kobject *kobj;
+
+ kobj = kobject_create();
+ if (kobj == NULL)
+ return (NULL);
+ if (kobject_add(kobj, parent, "%s", name) == 0)
+ return (kobj);
+ kobject_put(kobj);
+
+ return (NULL);
+}
+
+
+static inline char *
+kobject_name(const struct kobject *kobj)
+{
+
+ return kobj->name;
+}
+
+int kobject_set_name(struct kobject *kobj, const char *fmt, ...);
+int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
+ struct kobject *parent, const char *fmt, ...);
+
+/* sysfs.h calles for 'kobject' which is defined here,
+ * so we need to add the include only after the 'kobject' def.
+ */
+#include <linux/sysfs.h>
+
+struct kobj_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count);
+};
+
+#endif /* _LINUX_KOBJECT_H_ */