Merge branch 'for-2.6.31' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'for-2.6.31' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (128 commits)
  nfs41: sunrpc: xprt_alloc_bc_request() should not use spin_lock_bh()
  nfs41: Move initialization of nfs4_opendata seq_res to nfs4_init_opendata_res
  nfs: remove unnecessary NFS_INO_INVALID_ACL checks
  NFS: More "sloppy" parsing problems
  NFS: Invalid mount option values should always fail, even with "sloppy"
  NFS: Remove unused XDR decoder functions
  NFS: Update MNT and MNT3 reply decoding functions
  NFS: add XDR decoder for mountd version 3 auth-flavor lists
  NFS: add new file handle decoders to in-kernel mountd client
  NFS: Add separate mountd status code decoders for each mountd version
  NFS: remove unused function in fs/nfs/mount_clnt.c
  NFS: Use xdr_stream-based XDR encoder for MNT's dirpath argument
  NFS: Clean up MNT program definitions
  lockd: Don't bother with RPC ping for NSM upcalls
  lockd: Update NSM state from SM_MON replies
  NFS: Fix false error return from nfs_callback_up() if ipv6.ko is not available
  NFS: Return error code from nfs_callback_up() to user space
  NFS: Do not display the setting of the "intr" mount option
  NFS: add support for splice writes
  nfs41: Backchannel: CB_SEQUENCE validation
  ...

1 files changed, 81 insertions, 0 deletions

diff --git a/net/sunrpc/bc_svc.c b/net/sunrpc/bc_svc.c
new file mode 100644
index 000000000000..13f214f53120
--- /dev/null
+++ b/net/sunrpc/bc_svc.c
@@ -0,0 +1,81 @@
+/******************************************************************************
+
+(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+(c) 2009 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.
+
+******************************************************************************/
+
+/*
+ * The NFSv4.1 callback service helper routines.
+ * They implement the transport level processing required to send the
+ * reply over an existing open connection previously established by the client.
+ */
+
+#if defined(CONFIG_NFS_V4_1)
+
+#include <linux/module.h>
+
+#include <linux/sunrpc/xprt.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/bc_xprt.h>
+
+#define RPCDBG_FACILITY	RPCDBG_SVCDSP
+
+void bc_release_request(struct rpc_task *task)
+{
+	struct rpc_rqst *req = task->tk_rqstp;
+
+	dprintk("RPC:       bc_release_request: task= %p\n", task);
+
+	/*
+	 * Release this request only if it's a backchannel
+	 * preallocated request
+	 */
+	if (!bc_prealloc(req))
+		return;
+	xprt_free_bc_request(req);
+}
+
+/* Empty callback ops */
+static const struct rpc_call_ops nfs41_callback_ops = {
+};
+
+
+/*
+ * Send the callback reply
+ */
+int bc_send(struct rpc_rqst *req)
+{
+	struct rpc_task *task;
+	int ret;
+
+	dprintk("RPC:       bc_send req= %p\n", req);
+	task = rpc_run_bc_task(req, &nfs41_callback_ops);
+	if (IS_ERR(task))
+		ret = PTR_ERR(task);
+	else {
+		BUG_ON(atomic_read(&task->tk_count) != 1);
+		ret = task->tk_status;
+		rpc_put_task(task);
+	}
+	return ret;
+	dprintk("RPC:       bc_send ret= %d \n", ret);
+}
+
+#endif /* CONFIG_NFS_V4_1 */