Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/kernel/include/keys/user-type.h b/kernel/include/keys/user-type.h
new file mode 100644
index 000000000..cebefb069
--- /dev/null
+++ b/kernel/include/keys/user-type.h
@@ -0,0 +1,50 @@
+/* user-type.h: User-defined key type
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _KEYS_USER_TYPE_H
+#define _KEYS_USER_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+
+/*****************************************************************************/
+/*
+ * the payload for a key of type "user" or "logon"
+ * - once filled in and attached to a key:
+ *   - the payload struct is invariant may not be changed, only replaced
+ *   - the payload must be read with RCU procedures or with the key semaphore
+ *     held
+ *   - the payload may only be replaced with the key semaphore write-locked
+ * - the key's data length is the size of the actual data, not including the
+ *   payload wrapper
+ */
+struct user_key_payload {
+	struct rcu_head	rcu;		/* RCU destructor */
+	unsigned short	datalen;	/* length of this data */
+	char		data[0];	/* actual data */
+};
+
+extern struct key_type key_type_user;
+extern struct key_type key_type_logon;
+
+struct key_preparsed_payload;
+
+extern int user_preparse(struct key_preparsed_payload *prep);
+extern void user_free_preparse(struct key_preparsed_payload *prep);
+extern int user_update(struct key *key, struct key_preparsed_payload *prep);
+extern void user_revoke(struct key *key);
+extern void user_destroy(struct key *key);
+extern void user_describe(const struct key *user, struct seq_file *m);
+extern long user_read(const struct key *key,
+		      char __user *buffer, size_t buflen);
+
+
+#endif /* _KEYS_USER_TYPE_H */