From 8dafcbee41e69add8f166efdc52ca5fa7d1fd8c0 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 7 May 2018 15:27:00 -0400 Subject: [PATCH] svcrdma: Use passed-in net namespace when creating RDMA listener Ensure each RDMA listener and its children transports are created in the same net namespace as the user that started the NFS service. This is similar to how listener sockets are created in svc_create_socket, required for enabling support for containers. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields --- net/sunrpc/xprtrdma/svc_rdma_transport.c | 35 ++++++++++++------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 36332540f8d4..22e2595b1df6 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -60,7 +60,8 @@ #define RPCDBG_FACILITY RPCDBG_SVCXPRT static int svc_rdma_post_recv(struct svcxprt_rdma *xprt); -static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *, int); +static struct svcxprt_rdma *svc_rdma_create_xprt(struct svc_serv *serv, + struct net *net); static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, struct net *net, struct sockaddr *sa, int salen, @@ -124,7 +125,7 @@ static struct svc_xprt *svc_rdma_bc_create(struct svc_serv *serv, struct svcxprt_rdma *cma_xprt; struct svc_xprt *xprt; - cma_xprt = rdma_create_xprt(serv, 0); + cma_xprt = svc_rdma_create_xprt(serv, net); if (!cma_xprt) return ERR_PTR(-ENOMEM); xprt = &cma_xprt->sc_xprt; @@ -374,14 +375,16 @@ void svc_rdma_wc_send(struct ib_cq *cq, struct ib_wc *wc) svc_xprt_put(&xprt->sc_xprt); } -static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv, - int listener) +static struct svcxprt_rdma *svc_rdma_create_xprt(struct svc_serv *serv, + struct net *net) { struct svcxprt_rdma *cma_xprt = kzalloc(sizeof *cma_xprt, GFP_KERNEL); - if (!cma_xprt) + if (!cma_xprt) { + dprintk("svcrdma: failed to create new transport\n"); return NULL; - svc_xprt_init(&init_net, &svc_rdma_class, &cma_xprt->sc_xprt, serv); + } + svc_xprt_init(net, &svc_rdma_class, &cma_xprt->sc_xprt, serv); INIT_LIST_HEAD(&cma_xprt->sc_accept_q); INIT_LIST_HEAD(&cma_xprt->sc_rq_dto_q); INIT_LIST_HEAD(&cma_xprt->sc_read_complete_q); @@ -402,11 +405,6 @@ static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv, */ set_bit(XPT_CONG_CTRL, &cma_xprt->sc_xprt.xpt_flags); - if (listener) { - strcpy(cma_xprt->sc_xprt.xpt_remotebuf, "listener"); - set_bit(XPT_LISTENER, &cma_xprt->sc_xprt.xpt_flags); - } - return cma_xprt; } @@ -505,11 +503,10 @@ static void handle_connect_req(struct rdma_cm_id *new_cma_id, struct sockaddr *sa; /* Create a new transport */ - newxprt = rdma_create_xprt(listen_xprt->sc_xprt.xpt_server, 0); - if (!newxprt) { - dprintk("svcrdma: failed to create new transport\n"); + newxprt = svc_rdma_create_xprt(listen_xprt->sc_xprt.xpt_server, + listen_xprt->sc_xprt.xpt_net); + if (!newxprt) return; - } newxprt->sc_cm_id = new_cma_id; new_cma_id->context = newxprt; dprintk("svcrdma: Creating newxprt=%p, cm_id=%p, listenxprt=%p\n", @@ -635,16 +632,18 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, struct svcxprt_rdma *cma_xprt; int ret; - dprintk("svcrdma: Creating RDMA socket\n"); + dprintk("svcrdma: Creating RDMA listener\n"); if ((sa->sa_family != AF_INET) && (sa->sa_family != AF_INET6)) { dprintk("svcrdma: Address family %d is not supported.\n", sa->sa_family); return ERR_PTR(-EAFNOSUPPORT); } - cma_xprt = rdma_create_xprt(serv, 1); + cma_xprt = svc_rdma_create_xprt(serv, net); if (!cma_xprt) return ERR_PTR(-ENOMEM); + set_bit(XPT_LISTENER, &cma_xprt->sc_xprt.xpt_flags); + strcpy(cma_xprt->sc_xprt.xpt_remotebuf, "listener"); - listen_id = rdma_create_id(&init_net, rdma_listen_handler, cma_xprt, + listen_id = rdma_create_id(net, rdma_listen_handler, cma_xprt, RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(listen_id)) { ret = PTR_ERR(listen_id);