git://bbs.cooldavid.org / net-next-2.6.git / blame
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|---|---|---|
| 0d90ba1c RL |
1 | /****************************************************************************** |
| 2 | ||
| 3 | (c) 2007 Network Appliance, Inc. All Rights Reserved. | |
| 4 | (c) 2009 NetApp. All Rights Reserved. | |
| 5 | ||
| 6 | NetApp provides this source code under the GPL v2 License. | |
| 7 | The GPL v2 license is available at | |
| 8 | http://opensource.org/licenses/gpl-license.php. | |
| 9 | ||
| 10 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 11 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 12 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 13 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 14 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 15 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 16 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 17 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 18 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 19 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 20 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 21 | ||
| 22 | ******************************************************************************/ | |
| 23 | ||
| 24 | /* | |
| 25 | * The NFSv4.1 callback service helper routines. | |
| 26 | * They implement the transport level processing required to send the | |
| 27 | * reply over an existing open connection previously established by the client. | |
| 28 | */ | |
| 29 | ||
| 30 | #if defined(CONFIG_NFS_V4_1) | |
| 31 | ||
| 32 | #include <linux/module.h> | |
| 33 | ||
| 34 | #include <linux/sunrpc/xprt.h> | |
| 35 | #include <linux/sunrpc/sched.h> | |
| 36 | #include <linux/sunrpc/bc_xprt.h> | |
| 37 | ||
| 38 | #define RPCDBG_FACILITY RPCDBG_SVCDSP | |
| 39 | ||
| 0d90ba1c RL |
40 | /* Empty callback ops */ |
| 41 | static const struct rpc_call_ops nfs41_callback_ops = { | |
| 42 | }; | |
| 43 | ||
| 44 | ||
| 45 | /* | |
| 46 | * Send the callback reply | |
| 47 | */ | |
| 48 | int bc_send(struct rpc_rqst *req) | |
| 49 | { | |
| 50 | struct rpc_task *task; | |
| 51 | int ret; | |
| 52 | ||
| 53 | dprintk("RPC: bc_send req= %p\n", req); | |
| 54 | task = rpc_run_bc_task(req, &nfs41_callback_ops); | |
| 55 | if (IS_ERR(task)) | |
| 56 | ret = PTR_ERR(task); | |
| 57 | else { | |
| 58 | BUG_ON(atomic_read(&task->tk_count) != 1); | |
| 59 | ret = task->tk_status; | |
| 60 | rpc_put_task(task); | |
| 61 | } | |
| 62 | return ret; | |
| b1383380 | 63 | dprintk("RPC: bc_send ret= %d\n", ret); |
| 0d90ba1c RL |
64 | } |
| 65 | ||
| 66 | #endif /* CONFIG_NFS_V4_1 */ |