diff options
| -rw-r--r-- | net/ceph/messenger.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 9e46db7e5968..6f3b5754cc7e 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -583,18 +583,28 @@ static int __ceph_tcp_sendpage(struct socket *sock, struct page *page, static int ceph_tcp_sendpage(struct socket *sock, struct page *page, int offset, size_t size, bool more) { + struct msghdr msg = { .msg_flags = MSG_DONTWAIT | MSG_NOSIGNAL }; + struct bio_vec bvec; int ret; - struct kvec iov; /* sendpage cannot properly handle pages with page_count == 0, * we need to fallback to sendmsg if that's the case */ if (page_count(page) >= 1) return __ceph_tcp_sendpage(sock, page, offset, size, more); - iov.iov_base = kmap(page) + offset; - iov.iov_len = size; - ret = ceph_tcp_sendmsg(sock, &iov, 1, size, more); - kunmap(page); + bvec.bv_page = page; + bvec.bv_offset = offset; + bvec.bv_len = size; + + if (more) + msg.msg_flags |= MSG_MORE; + else + msg.msg_flags |= MSG_EOR; /* superfluous, but what the hell */ + + iov_iter_bvec(&msg.msg_iter, WRITE | ITER_BVEC, &bvec, 1, size); + ret = sock_sendmsg(sock, &msg); + if (ret == -EAGAIN) + ret = 0; return ret; } |