diff options
| -rw-r--r-- | net/smc/af_smc.c | 4 | ||||
| -rw-r--r-- | net/smc/smc_tx.c | 19 | ||||
| -rw-r--r-- | net/smc/smc_tx.h | 2 |
3 files changed, 23 insertions, 2 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 3137d8e5956d..9ea45a368619 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -2662,8 +2662,10 @@ static ssize_t smc_sendpage(struct socket *sock, struct page *page, rc = kernel_sendpage(smc->clcsock, page, offset, size, flags); } else { + lock_sock(sk); + rc = smc_tx_sendpage(smc, page, offset, size, flags); + release_sock(sk); SMC_STAT_INC(smc, sendpage_cnt); - rc = sock_no_sendpage(sock, page, offset, size, flags); } out: diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c index 9cec62cae7cb..a96ce162825e 100644 --- a/net/smc/smc_tx.c +++ b/net/smc/smc_tx.c @@ -235,7 +235,8 @@ int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len) */ if ((msg->msg_flags & MSG_OOB) && !send_remaining) conn->urg_tx_pend = true; - if ((msg->msg_flags & MSG_MORE || smc_tx_is_corked(smc)) && + if ((msg->msg_flags & MSG_MORE || smc_tx_is_corked(smc) || + msg->msg_flags & MSG_SENDPAGE_NOTLAST) && (atomic_read(&conn->sndbuf_space))) /* for a corked socket defer the RDMA writes if * sndbuf_space is still available. The applications @@ -257,6 +258,22 @@ out_err: return rc; } +int smc_tx_sendpage(struct smc_sock *smc, struct page *page, int offset, + size_t size, int flags) +{ + struct msghdr msg = {.msg_flags = flags}; + char *kaddr = kmap(page); + struct kvec iov; + int rc; + + iov.iov_base = kaddr + offset; + iov.iov_len = size; + iov_iter_kvec(&msg.msg_iter, WRITE, &iov, 1, size); + rc = smc_tx_sendmsg(smc, &msg, size); + kunmap(page); + return rc; +} + /***************************** sndbuf consumer *******************************/ /* sndbuf consumer: actual data transfer of one target chunk with ISM write */ diff --git a/net/smc/smc_tx.h b/net/smc/smc_tx.h index a59f370b8b43..34b578498b1f 100644 --- a/net/smc/smc_tx.h +++ b/net/smc/smc_tx.h @@ -31,6 +31,8 @@ void smc_tx_pending(struct smc_connection *conn); void smc_tx_work(struct work_struct *work); void smc_tx_init(struct smc_sock *smc); int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len); +int smc_tx_sendpage(struct smc_sock *smc, struct page *page, int offset, + size_t size, int flags); int smc_tx_sndbuf_nonempty(struct smc_connection *conn); void smc_tx_sndbuf_nonfull(struct smc_sock *smc); void smc_tx_consumer_update(struct smc_connection *conn, bool force); |