diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/protocol.c | 11 | ||||
| -rw-r--r-- | net/sctp/socket.c | 14 |
2 files changed, 19 insertions, 6 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index a8ca743241ee..b78e3be69013 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -102,6 +102,8 @@ struct sock *sctp_get_ctl_sock(void) /* Set up the proc fs entry for the SCTP protocol. */ static __init int sctp_proc_init(void) { + if (percpu_counter_init(&sctp_sockets_allocated, 0)) + goto out_nomem; #ifdef CONFIG_PROC_FS if (!proc_net_sctp) { struct proc_dir_entry *ent; @@ -110,7 +112,7 @@ static __init int sctp_proc_init(void) ent->owner = THIS_MODULE; proc_net_sctp = ent; } else - goto out_nomem; + goto out_free_percpu; } if (sctp_snmp_proc_init()) @@ -135,11 +137,14 @@ out_snmp_proc_init: proc_net_sctp = NULL; remove_proc_entry("sctp", init_net.proc_net); } -out_nomem: - return -ENOMEM; +out_free_percpu: + percpu_counter_destroy(&sctp_sockets_allocated); #else return 0; #endif /* CONFIG_PROC_FS */ + +out_nomem: + return -ENOMEM; } /* Clean up the proc fs entry for the SCTP protocol. diff --git a/net/sctp/socket.c b/net/sctp/socket.c index a1b904529d5e..a2de585888d0 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -114,7 +114,7 @@ extern int sysctl_sctp_wmem[3]; static int sctp_memory_pressure; static atomic_t sctp_memory_allocated; -static atomic_t sctp_sockets_allocated; +struct percpu_counter sctp_sockets_allocated; static void sctp_enter_memory_pressure(struct sock *sk) { @@ -3613,7 +3613,12 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk) sp->hmac = NULL; SCTP_DBG_OBJCNT_INC(sock); - atomic_inc(&sctp_sockets_allocated); + percpu_counter_inc(&sctp_sockets_allocated); + + local_bh_disable(); + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + local_bh_enable(); + return 0; } @@ -3627,7 +3632,10 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk) /* Release our hold on the endpoint. */ ep = sctp_sk(sk)->ep; sctp_endpoint_free(ep); - atomic_dec(&sctp_sockets_allocated); + percpu_counter_dec(&sctp_sockets_allocated); + local_bh_disable(); + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); + local_bh_enable(); } /* API 4.1.7 shutdown() - TCP Style Syntax |