diff options
Diffstat (limited to 'net/sunrpc')
-rw-r--r-- | net/sunrpc/clnt.c | 7 | ||||
-rw-r--r-- | net/sunrpc/svc_xprt.c | 11 | ||||
-rw-r--r-- | net/sunrpc/svcsock.c | 21 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/frwr_ops.c | 37 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 6 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 3 |
6 files changed, 57 insertions, 28 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 34dd7b26ee5f..62a482790937 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2753,14 +2753,18 @@ EXPORT_SYMBOL_GPL(rpc_cap_max_reconnect_timeout); void rpc_clnt_xprt_switch_put(struct rpc_clnt *clnt) { + rcu_read_lock(); xprt_switch_put(rcu_dereference(clnt->cl_xpi.xpi_xpswitch)); + rcu_read_unlock(); } EXPORT_SYMBOL_GPL(rpc_clnt_xprt_switch_put); void rpc_clnt_xprt_switch_add_xprt(struct rpc_clnt *clnt, struct rpc_xprt *xprt) { + rcu_read_lock(); rpc_xprt_switch_add_xprt(rcu_dereference(clnt->cl_xpi.xpi_xpswitch), xprt); + rcu_read_unlock(); } EXPORT_SYMBOL_GPL(rpc_clnt_xprt_switch_add_xprt); @@ -2770,9 +2774,8 @@ bool rpc_clnt_xprt_switch_has_addr(struct rpc_clnt *clnt, struct rpc_xprt_switch *xps; bool ret; - xps = rcu_dereference(clnt->cl_xpi.xpi_xpswitch); - rcu_read_lock(); + xps = rcu_dereference(clnt->cl_xpi.xpi_xpswitch); ret = rpc_xprt_switch_has_addr(xps, sap); rcu_read_unlock(); return ret; diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index c3f652395a80..3bc1d61694cb 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -1002,14 +1002,8 @@ static void svc_age_temp_xprts(unsigned long closure) void svc_age_temp_xprts_now(struct svc_serv *serv, struct sockaddr *server_addr) { struct svc_xprt *xprt; - struct svc_sock *svsk; - struct socket *sock; struct list_head *le, *next; LIST_HEAD(to_be_closed); - struct linger no_linger = { - .l_onoff = 1, - .l_linger = 0, - }; spin_lock_bh(&serv->sv_lock); list_for_each_safe(le, next, &serv->sv_tempsocks) { @@ -1027,10 +1021,7 @@ void svc_age_temp_xprts_now(struct svc_serv *serv, struct sockaddr *server_addr) list_del_init(le); xprt = list_entry(le, struct svc_xprt, xpt_list); dprintk("svc_age_temp_xprts_now: closing %p\n", xprt); - svsk = container_of(xprt, struct svc_sock, sk_xprt); - sock = svsk->sk_sock; - kernel_setsockopt(sock, SOL_SOCKET, SO_LINGER, - (char *)&no_linger, sizeof(no_linger)); + xprt->xpt_ops->xpo_kill_temp_xprt(xprt); svc_close_xprt(xprt); } } diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 57625f64efd5..a4bc98265d88 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -438,6 +438,21 @@ static int svc_tcp_has_wspace(struct svc_xprt *xprt) return !test_bit(SOCK_NOSPACE, &svsk->sk_sock->flags); } +static void svc_tcp_kill_temp_xprt(struct svc_xprt *xprt) +{ + struct svc_sock *svsk; + struct socket *sock; + struct linger no_linger = { + .l_onoff = 1, + .l_linger = 0, + }; + + svsk = container_of(xprt, struct svc_sock, sk_xprt); + sock = svsk->sk_sock; + kernel_setsockopt(sock, SOL_SOCKET, SO_LINGER, + (char *)&no_linger, sizeof(no_linger)); +} + /* * See net/ipv6/ip_sockglue.c : ip_cmsg_recv_pktinfo */ @@ -648,6 +663,10 @@ static struct svc_xprt *svc_udp_accept(struct svc_xprt *xprt) return NULL; } +static void svc_udp_kill_temp_xprt(struct svc_xprt *xprt) +{ +} + static struct svc_xprt *svc_udp_create(struct svc_serv *serv, struct net *net, struct sockaddr *sa, int salen, @@ -667,6 +686,7 @@ static struct svc_xprt_ops svc_udp_ops = { .xpo_has_wspace = svc_udp_has_wspace, .xpo_accept = svc_udp_accept, .xpo_secure_port = svc_sock_secure_port, + .xpo_kill_temp_xprt = svc_udp_kill_temp_xprt, }; static struct svc_xprt_class svc_udp_class = { @@ -1242,6 +1262,7 @@ static struct svc_xprt_ops svc_tcp_ops = { .xpo_has_wspace = svc_tcp_has_wspace, .xpo_accept = svc_tcp_accept, .xpo_secure_port = svc_sock_secure_port, + .xpo_kill_temp_xprt = svc_tcp_kill_temp_xprt, }; static struct svc_xprt_class svc_tcp_class = { diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c index 210949562786..26b26beef2d4 100644 --- a/net/sunrpc/xprtrdma/frwr_ops.c +++ b/net/sunrpc/xprtrdma/frwr_ops.c @@ -44,18 +44,20 @@ * being done. * * When the underlying transport disconnects, MRs are left in one of - * three states: + * four states: * * INVALID: The MR was not in use before the QP entered ERROR state. - * (Or, the LOCAL_INV WR has not completed or flushed yet). - * - * STALE: The MR was being registered or unregistered when the QP - * entered ERROR state, and the pending WR was flushed. * * VALID: The MR was registered before the QP entered ERROR state. * - * When frwr_op_map encounters STALE and VALID MRs, they are recovered - * with ib_dereg_mr and then are re-initialized. Beause MR recovery + * FLUSHED_FR: The MR was being registered when the QP entered ERROR + * state, and the pending WR was flushed. + * + * FLUSHED_LI: The MR was being invalidated when the QP entered ERROR + * state, and the pending WR was flushed. + * + * When frwr_op_map encounters FLUSHED and VALID MRs, they are recovered + * with ib_dereg_mr and then are re-initialized. Because MR recovery * allocates fresh resources, it is deferred to a workqueue, and the * recovered MRs are placed back on the rb_mws list when recovery is * complete. frwr_op_map allocates another MR for the current RPC while @@ -177,12 +179,15 @@ __frwr_reset_mr(struct rpcrdma_ia *ia, struct rpcrdma_mw *r) static void frwr_op_recover_mr(struct rpcrdma_mw *mw) { + enum rpcrdma_frmr_state state = mw->frmr.fr_state; struct rpcrdma_xprt *r_xprt = mw->mw_xprt; struct rpcrdma_ia *ia = &r_xprt->rx_ia; int rc; rc = __frwr_reset_mr(ia, mw); - ib_dma_unmap_sg(ia->ri_device, mw->mw_sg, mw->mw_nents, mw->mw_dir); + if (state != FRMR_FLUSHED_LI) + ib_dma_unmap_sg(ia->ri_device, + mw->mw_sg, mw->mw_nents, mw->mw_dir); if (rc) goto out_release; @@ -262,10 +267,8 @@ frwr_op_maxpages(struct rpcrdma_xprt *r_xprt) } static void -__frwr_sendcompletion_flush(struct ib_wc *wc, struct rpcrdma_frmr *frmr, - const char *wr) +__frwr_sendcompletion_flush(struct ib_wc *wc, const char *wr) { - frmr->fr_state = FRMR_IS_STALE; if (wc->status != IB_WC_WR_FLUSH_ERR) pr_err("rpcrdma: %s: %s (%u/0x%x)\n", wr, ib_wc_status_msg(wc->status), @@ -288,7 +291,8 @@ frwr_wc_fastreg(struct ib_cq *cq, struct ib_wc *wc) if (wc->status != IB_WC_SUCCESS) { cqe = wc->wr_cqe; frmr = container_of(cqe, struct rpcrdma_frmr, fr_cqe); - __frwr_sendcompletion_flush(wc, frmr, "fastreg"); + frmr->fr_state = FRMR_FLUSHED_FR; + __frwr_sendcompletion_flush(wc, "fastreg"); } } @@ -308,7 +312,8 @@ frwr_wc_localinv(struct ib_cq *cq, struct ib_wc *wc) if (wc->status != IB_WC_SUCCESS) { cqe = wc->wr_cqe; frmr = container_of(cqe, struct rpcrdma_frmr, fr_cqe); - __frwr_sendcompletion_flush(wc, frmr, "localinv"); + frmr->fr_state = FRMR_FLUSHED_LI; + __frwr_sendcompletion_flush(wc, "localinv"); } } @@ -328,8 +333,10 @@ frwr_wc_localinv_wake(struct ib_cq *cq, struct ib_wc *wc) /* WARNING: Only wr_cqe and status are reliable at this point */ cqe = wc->wr_cqe; frmr = container_of(cqe, struct rpcrdma_frmr, fr_cqe); - if (wc->status != IB_WC_SUCCESS) - __frwr_sendcompletion_flush(wc, frmr, "localinv"); + if (wc->status != IB_WC_SUCCESS) { + frmr->fr_state = FRMR_FLUSHED_LI; + __frwr_sendcompletion_flush(wc, "localinv"); + } complete(&frmr->fr_linv_done); } diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 6864fb967038..1334de2715c2 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -67,6 +67,7 @@ static void svc_rdma_detach(struct svc_xprt *xprt); static void svc_rdma_free(struct svc_xprt *xprt); static int svc_rdma_has_wspace(struct svc_xprt *xprt); static int svc_rdma_secure_port(struct svc_rqst *); +static void svc_rdma_kill_temp_xprt(struct svc_xprt *); static struct svc_xprt_ops svc_rdma_ops = { .xpo_create = svc_rdma_create, @@ -79,6 +80,7 @@ static struct svc_xprt_ops svc_rdma_ops = { .xpo_has_wspace = svc_rdma_has_wspace, .xpo_accept = svc_rdma_accept, .xpo_secure_port = svc_rdma_secure_port, + .xpo_kill_temp_xprt = svc_rdma_kill_temp_xprt, }; struct svc_xprt_class svc_rdma_class = { @@ -1317,6 +1319,10 @@ static int svc_rdma_secure_port(struct svc_rqst *rqstp) return 1; } +static void svc_rdma_kill_temp_xprt(struct svc_xprt *xprt) +{ +} + int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr) { struct ib_send_wr *bad_wr, *n_wr; diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 0d35b761c883..6e1bba358203 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -216,7 +216,8 @@ struct rpcrdma_rep { enum rpcrdma_frmr_state { FRMR_IS_INVALID, /* ready to be used */ FRMR_IS_VALID, /* in use */ - FRMR_IS_STALE, /* failed completion */ + FRMR_FLUSHED_FR, /* flushed FASTREG WR */ + FRMR_FLUSHED_LI, /* flushed LOCALINV WR */ }; struct rpcrdma_frmr { |