Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Al Viro says:

====================
netdev-related stuff in vfs.git

There are several commits sitting in vfs.git that probably ought to go in
via net-next.git.  First of all, there's merge with vfs.git#iocb - that's
Christoph's aio rework, which has triggered conflicts with the ->sendmsg()
and ->recvmsg() patches a while ago.  It's not so much Christoph's stuff
that ought to be in net-next, as (pretty simple) conflict resolution on merge.
The next chunk is switch to {compat_,}import_iovec/import_single_range - new
safer primitives for initializing iov_iter.  The primitives themselves come
from vfs/git#iov_iter (and they are used quite a lot in vfs part of queue),
conversion of net/socket.c syscalls belongs in net-next, IMO.  Next there's
afs and rxrpc stuff from dhowells.  And then there's sanitizing kernel_sendmsg
et.al.  + missing inlined helper for "how much data is left in msg->msg_iter" -
this stuff is used in e.g.  cifs stuff, but it belongs in net-next.

That pile is pullable from
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-davem

I'll post the individual patches in there in followups; could you take a look
and tell if everything in there is OK with you?
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index df493d6..b80fb91 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -673,7 +673,7 @@ int skb_copy_and_csum_datagram_msg(struct sk_buff *skb,
 	if (!chunk)
 		return 0;
 
-	if (iov_iter_count(&msg->msg_iter) < chunk) {
+	if (msg_data_left(msg) < chunk) {
 		if (__skb_checksum_complete(skb))
 			goto csum_error;
 		if (skb_copy_datagram_msg(skb, hlen, msg, chunk))