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Commit 79ab80be authored by Al Viro's avatar Al Viro
Browse files

[drbd] use sock_sendmsg() 



... and keep ->msg_iter through the loop

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent b4b8664d

drivers/block/drbd/drbd_main.c

+4 −7
Original line number Diff line number Diff line
@@ -1846,7 +1846,7 @@ int drbd_send_out_of_sync(struct drbd_peer_device *peer_device, struct drbd_requ 
int drbd_send(struct drbd_connection *connection, struct socket *sock,

	      void *buf, size_t size, unsigned msg_flags)

{

	struct kvec iov;

	struct kvec iov = {.iov_base = buf, .iov_len = size};

	struct msghdr msg;

	int rv, sent = 0;
@@ -1855,15 +1855,14 @@ int drbd_send(struct drbd_connection *connection, struct socket *sock, 


	/* THINK  if (signal_pending) return ... ? */



	iov.iov_base = buf;

	iov.iov_len  = size;



	msg.msg_name       = NULL;

	msg.msg_namelen    = 0;

	msg.msg_control    = NULL;

	msg.msg_controllen = 0;

	msg.msg_flags      = msg_flags | MSG_NOSIGNAL;



	iov_iter_kvec(&msg.msg_iter, WRITE | ITER_KVEC, &iov, 1, size);



	if (sock == connection->data.socket) {

		rcu_read_lock();

		connection->ko_count = rcu_dereference(connection->net_conf)->ko_count;
@@ -1871,7 +1870,7 @@ int drbd_send(struct drbd_connection *connection, struct socket *sock, 
		drbd_update_congested(connection);

	}

	do {

		rv = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);

		rv = sock_sendmsg(sock, &msg);

		if (rv == -EAGAIN) {

			if (we_should_drop_the_connection(connection, sock))

				break;
@@ -1885,8 +1884,6 @@ int drbd_send(struct drbd_connection *connection, struct socket *sock, 
		if (rv < 0)

			break;

		sent += rv;

		iov.iov_base += rv;

		iov.iov_len  -= rv;

	} while (sent < size);



	if (sock == connection->data.socket)