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net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()

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That takes care of the majority of ->sendmsg() instances - most of them
via memcpy_to_msg() or assorted getfrag() callbacks.  One place where we
still keep memcpy_fromiovecend() is tipc - there we potentially read the
same data over and over; separate patch, that...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-11-28 15:48:29 -05:00
commit 21226abb4e
7 changed files with 14 additions and 18 deletions
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2
net/ipv4/tcp_input.c
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@ -4368,7 +4368,7 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size)
if (tcp_try_rmem_schedule(sk, skb, skb->truesize))
goto err_free;
if (copy_from_iter(skb_put(skb, size), size, &msg->msg_iter) != size)
if (memcpy_from_msg(skb_put(skb, size), msg, size))
goto err_free;
TCP_SKB_CB(skb)->seq = tcp_sk(sk)->rcv_nxt;