drbd: don't open-code kernel_recvmsg()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index d073305..1385714 100644 (file)
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -468,24 +468,14 @@ static void drbd_wait_ee_list_empty(struct drbd_conf *mdev,
 
 static int drbd_recv_short(struct socket *sock, void *buf, size_t size, int flags)
 {
-       mm_segment_t oldfs;
        struct kvec iov = {
                .iov_base = buf,
                .iov_len = size,
        };
        struct msghdr msg = {
-               .msg_iovlen = 1,
-               .msg_iov = (struct iovec *)&iov,
                .msg_flags = (flags ? flags : MSG_WAITALL | MSG_NOSIGNAL)
        };
-       int rv;
-
-       oldfs = get_fs();
-       set_fs(KERNEL_DS);
-       rv = sock_recvmsg(sock, &msg, size, msg.msg_flags);
-       set_fs(oldfs);
-
-       return rv;
+       return kernel_recvmsg(sock, &msg, &iov, 1, size, msg.msg_flags);
 }
 
 static int drbd_recv(struct drbd_tconn *tconn, void *buf, size_t size)