diff options
Diffstat (limited to 'net/rds/tcp_recv.c')
| -rw-r--r-- | net/rds/tcp_recv.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c index e006ef8e6d40..7997a19d1da3 100644 --- a/net/rds/tcp_recv.c +++ b/net/rds/tcp_recv.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006 Oracle. All rights reserved. + * Copyright (c) 2006, 2017 Oracle and/or its affiliates. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -33,6 +33,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <net/tcp.h> +#include <trace/events/sock.h> #include "rds.h" #include "tcp.h" @@ -177,9 +178,9 @@ static int rds_tcp_data_recv(read_descriptor_t *desc, struct sk_buff *skb, goto out; } tc->t_tinc = tinc; - rdsdebug("alloced tinc %p\n", tinc); + rdsdebug("allocated tinc %p\n", tinc); rds_inc_path_init(&tinc->ti_inc, cp, - cp->cp_conn->c_faddr); + &cp->cp_conn->c_faddr); tinc->ti_inc.i_rx_lat_trace[RDS_MSG_RX_HDR] = local_clock(); @@ -239,8 +240,9 @@ static int rds_tcp_data_recv(read_descriptor_t *desc, struct sk_buff *skb, if (tinc->ti_inc.i_hdr.h_flags == RDS_FLAG_CONG_BITMAP) rds_tcp_cong_recv(conn, tinc); else - rds_recv_incoming(conn, conn->c_faddr, - conn->c_laddr, &tinc->ti_inc, + rds_recv_incoming(conn, &conn->c_faddr, + &conn->c_laddr, + &tinc->ti_inc, arg->gfp); tc->t_tinc_hdr_rem = sizeof(struct rds_header); @@ -308,6 +310,7 @@ void rds_tcp_data_ready(struct sock *sk) struct rds_conn_path *cp; struct rds_tcp_connection *tc; + trace_sk_data_ready(sk); rdsdebug("data ready sk %p\n", sk); read_lock_bh(&sk->sk_callback_lock); @@ -321,8 +324,12 @@ void rds_tcp_data_ready(struct sock *sk) ready = tc->t_orig_data_ready; rds_tcp_stats_inc(s_tcp_data_ready_calls); - if (rds_tcp_read_sock(cp, GFP_ATOMIC) == -ENOMEM) - queue_delayed_work(rds_wq, &cp->cp_recv_w, 0); + if (rds_tcp_read_sock(cp, GFP_ATOMIC) == -ENOMEM) { + rcu_read_lock(); + if (!rds_destroy_pending(cp->cp_conn)) + queue_delayed_work(rds_wq, &cp->cp_recv_w, 0); + rcu_read_unlock(); + } out: read_unlock_bh(&sk->sk_callback_lock); ready(sk); @@ -330,9 +337,7 @@ out: int rds_tcp_recv_init(void) { - rds_tcp_incoming_slab = kmem_cache_create("rds_tcp_incoming", - sizeof(struct rds_tcp_incoming), - 0, 0, NULL); + rds_tcp_incoming_slab = KMEM_CACHE(rds_tcp_incoming, 0); if (!rds_tcp_incoming_slab) return -ENOMEM; return 0; |