nfs41: create a svc_xprt for nfs41 callback thread and use for incoming callbacks
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 4709288..37815f3 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -185,16 +185,31 @@
struct svc_rqst *
nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
{
+ struct svc_xprt *bc_xprt;
+ struct svc_rqst *rqstp = ERR_PTR(-ENOMEM);
+
+ dprintk("--> %s\n", __func__);
+ /* Create a svc_sock for the service */
+ bc_xprt = svc_sock_create(serv, xprt->prot);
+ if (!bc_xprt)
+ goto out;
+
/*
* Save the svc_serv in the transport so that it can
* be referenced when the session backchannel is initialized
*/
+ serv->bc_xprt = bc_xprt;
xprt->bc_serv = serv;
INIT_LIST_HEAD(&serv->sv_cb_list);
spin_lock_init(&serv->sv_cb_lock);
init_waitqueue_head(&serv->sv_cb_waitq);
- return svc_prepare_thread(serv, &serv->sv_pools[0]);
+ rqstp = svc_prepare_thread(serv, &serv->sv_pools[0]);
+ if (IS_ERR(rqstp))
+ svc_sock_destroy(bc_xprt);
+out:
+ dprintk("--> %s return %p\n", __func__, rqstp);
+ return rqstp;
}
static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index b35048f..6b90ce4 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1258,6 +1258,7 @@
int error;
/* Build the svc_rqst used by the common processing routine */
+ rqstp->rq_xprt = serv->bc_xprt;
rqstp->rq_xid = req->rq_xid;
rqstp->rq_prot = req->rq_xprt->prot;
rqstp->rq_server = serv;