diff options
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/af_smc.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 961b8eff9553..823ea3371575 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -29,6 +29,7 @@ #include <net/sock.h> #include <net/tcp.h> #include <net/smc.h> +#include <asm/ioctls.h> #include "smc.h" #include "smc_clc.h" @@ -1389,12 +1390,38 @@ static int smc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { struct smc_sock *smc; + int answ; smc = smc_sk(sock->sk); - if (smc->use_fallback) + if (smc->use_fallback) { + if (!smc->clcsock) + return -EBADF; return smc->clcsock->ops->ioctl(smc->clcsock, cmd, arg); - else - return sock_no_ioctl(sock, cmd, arg); + } + switch (cmd) { + case SIOCINQ: /* same as FIONREAD */ + if (smc->sk.sk_state == SMC_LISTEN) + return -EINVAL; + answ = atomic_read(&smc->conn.bytes_to_rcv); + break; + case SIOCOUTQ: + /* output queue size (not send + not acked) */ + if (smc->sk.sk_state == SMC_LISTEN) + return -EINVAL; + answ = smc->conn.sndbuf_size - + atomic_read(&smc->conn.sndbuf_space); + break; + case SIOCOUTQNSD: + /* output queue size (not send only) */ + if (smc->sk.sk_state == SMC_LISTEN) + return -EINVAL; + answ = smc_tx_prepared_sends(&smc->conn); + break; + default: + return -ENOIOCTLCMD; + } + + return put_user(answ, (int __user *)arg); } static ssize_t smc_sendpage(struct socket *sock, struct page *page, |