Merge branch 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull kern_recvmsg reduction from Al Viro:
 "kernel_recvmsg() is a set_fs()-using wrapper for sock_recvmsg(). In
  all but one case that is not needed - use of ITER_KVEC for ->msg_iter
  takes care of the data and does not care about set_fs(). The only
  exception is svc_udp_recvfrom() where we want cmsg to be store into
  kernel object; everything else can just use sock_recvmsg() and be done
  with that.

  A followup converting svc_udp_recvfrom() away from set_fs() (and
  killing kernel_recvmsg() off) is *NOT* in here - I'd like to hear what
  netdev folks think of the approach proposed in that followup)"

* 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  tipc: switch to sock_recvmsg()
  smc: switch to sock_recvmsg()
  ipvs: switch to sock_recvmsg()
  mISDN: switch to sock_recvmsg()
  drbd: switch to sock_recvmsg()
  lustre lnet_sock_read(): switch to sock_recvmsg()
  cfs2: switch to sock_recvmsg()
  ncpfs: switch to sock_recvmsg()
  dlm: switch to sock_recvmsg()
  svc_recvfrom(): switch to sock_recvmsg()

1 files changed, 9 insertions, 13 deletions

diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index e3654782a3e2f..21d50e4cc5e1d 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -645,8 +645,10 @@ l1oip_socket_thread(void *data)
 {
 	struct l1oip *hc = (struct l1oip *)data;
 	int ret = 0;
-	struct msghdr msg;
 	struct sockaddr_in sin_rx;
+	struct kvec iov;
+	struct msghdr msg = {.msg_name = &sin_rx,
+			     .msg_namelen = sizeof(sin_rx)};
 	unsigned char *recvbuf;
 	size_t recvbuf_size = 1500;
 	int recvlen;
@@ -661,6 +663,9 @@ l1oip_socket_thread(void *data)
 		goto fail;
 	}
 
+	iov.iov_base = recvbuf;
+	iov.iov_len = recvbuf_size;
+
 	/* make daemon */
 	allow_signal(SIGTERM);
 
@@ -697,12 +702,6 @@ l1oip_socket_thread(void *data)
 		goto fail;
 	}
 
-	/* build receive message */
-	msg.msg_name = &sin_rx;
-	msg.msg_namelen = sizeof(sin_rx);
-	msg.msg_control = NULL;
-	msg.msg_controllen = 0;
-
 	/* build send message */
 	hc->sendmsg.msg_name = &hc->sin_remote;
 	hc->sendmsg.msg_namelen = sizeof(hc->sin_remote);
@@ -719,12 +718,9 @@ l1oip_socket_thread(void *data)
 		printk(KERN_DEBUG "%s: socket created and open\n",
 		       __func__);
 	while (!signal_pending(current)) {
-		struct kvec iov = {
-			.iov_base = recvbuf,
-			.iov_len = recvbuf_size,
-		};
-		recvlen = kernel_recvmsg(socket, &msg, &iov, 1,
-					 recvbuf_size, 0);
+		iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1,
+				recvbuf_size);
+		recvlen = sock_recvmsg(socket, &msg, 0);
 		if (recvlen > 0) {
 			l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
 		} else {