NFS associate sessionid with callback connection

[pandora-kernel.git] / fs / nfs / callback.c

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 0e9fae8..c0b0549 100644 (file)
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -136,6 +136,33 @@ out_err:
 }
 
 #if defined(CONFIG_NFS_V4_1)
+/*
+ *  * CB_SEQUENCE operations will fail until the callback sessionid is set.
+ *   */
+int nfs4_set_callback_sessionid(struct nfs_client *clp)
+{
+       struct svc_serv *serv = clp->cl_rpcclient->cl_xprt->bc_serv;
+       struct nfs4_sessionid *bc_sid;
+
+       if (!serv->bc_xprt)
+               return -EINVAL;
+
+       /* on success freed in xprt_free */
+       bc_sid = kmalloc(sizeof(struct nfs4_sessionid), GFP_KERNEL);
+       if (!bc_sid)
+               return -ENOMEM;
+       memcpy(bc_sid->data, &clp->cl_session->sess_id.data,
+               NFS4_MAX_SESSIONID_LEN);
+       spin_lock_bh(&serv->sv_cb_lock);
+       serv->bc_xprt->xpt_bc_sid = bc_sid;
+       spin_unlock_bh(&serv->sv_cb_lock);
+       dprintk("%s set xpt_bc_sid=%u:%u:%u:%u for bc_xprt %p\n", __func__,
+               ((u32 *)bc_sid->data)[0], ((u32 *)bc_sid->data)[1],
+               ((u32 *)bc_sid->data)[2], ((u32 *)bc_sid->data)[3],
+               serv->bc_xprt);
+       return 0;
+}
+
 /*
  * The callback service for NFSv4.1 callbacks
  */
@@ -241,6 +268,10 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
                struct nfs_callback_data *cb_info)
 {
 }
+int nfs4_set_callback_sessionid(struct nfs_client *clp)
+{
+       return 0;
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 /*