Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / sunrpc / sunrpc.h

diff --git a/kernel/net/sunrpc/sunrpc.h b/kernel/net/sunrpc/sunrpc.h
new file mode 100644 (file)
index 0000000..f2b7cb5
--- /dev/null
+++ b/kernel/net/sunrpc/sunrpc.h
@@ -0,0 +1,66 @@
+/******************************************************************************
+
+(c) 2008 NetApp.  All Rights Reserved.
+
+NetApp provides this source code under the GPL v2 License.
+The GPL v2 license is available at
+http://opensource.org/licenses/gpl-license.php.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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 COPYRIGHT OWNER OR
+CONTRIBUTORS 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.
+
+******************************************************************************/
+
+/*
+ * Functions and macros used internally by RPC
+ */
+
+#ifndef _NET_SUNRPC_SUNRPC_H
+#define _NET_SUNRPC_SUNRPC_H
+
+#include <linux/net.h>
+
+/*
+ * Header for dynamically allocated rpc buffers.
+ */
+struct rpc_buffer {
+       size_t  len;
+       char    data[];
+};
+
+static inline int rpc_reply_expected(struct rpc_task *task)
+{
+       return (task->tk_msg.rpc_proc != NULL) &&
+               (task->tk_msg.rpc_proc->p_decode != NULL);
+}
+
+static inline int sock_is_loopback(struct sock *sk)
+{
+       struct dst_entry *dst;
+       int loopback = 0;
+       rcu_read_lock();
+       dst = rcu_dereference(sk->sk_dst_cache);
+       if (dst && dst->dev &&
+           (dst->dev->features & NETIF_F_LOOPBACK))
+               loopback = 1;
+       rcu_read_unlock();
+       return loopback;
+}
+
+int svc_send_common(struct socket *sock, struct xdr_buf *xdr,
+                   struct page *headpage, unsigned long headoffset,
+                   struct page *tailpage, unsigned long tailoffset);
+
+int rpc_clients_notifier_register(void);
+void rpc_clients_notifier_unregister(void);
+#endif /* _NET_SUNRPC_SUNRPC_H */
+