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-rw-r--r--sys/compat/linuxkpi/common/include/linux/uaccess.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/uaccess.h b/sys/compat/linuxkpi/common/include/linux/uaccess.h
new file mode 100644
index 000000000000..87d1babddce2
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+++ b/sys/compat/linuxkpi/common/include/linux/uaccess.h
@@ -0,0 +1,57 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
+ * Copyright (c) 2015 Fran├žois Tigeot
+ * 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_UACCESS_H_
+#define _LINUX_UACCESS_H_
+
+#include <linux/compiler.h>
+
+#define get_user(_x, _p) -copyin((_p), &(_x), sizeof(*(_p)))
+#define put_user(_x, _p) -copyout(&(_x), (_p), sizeof(*(_p)))
+
+/*
+ * NOTE: The returned value from pagefault_disable() must be stored
+ * and passed to pagefault_enable(). Else possible recursion on the
+ * state can be lost.
+ */
+static inline int __must_check
+pagefault_disable(void)
+{
+ return (vm_fault_disable_pagefaults());
+}
+
+static inline void
+pagefault_enable(int save)
+{
+ vm_fault_enable_pagefaults(save);
+}
+
+#endif /* _LINUX_UACCESS_H_ */