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| author |   David S. Miller <davem@davemloft.net> | 2015-02-04 20:46:55 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-04 20:46:55 -0800 |
| commit | f2683b743f2334ef49a5361bf596dd1fbd2c9be4 (patch) | |
| tree | 7f53b2614742238e966ba8a815ef6c5079422ee2 /net/ipv4/tcp_output.c | |
| parent | tcp: do not pace pure ack packets (diff) | |
| parent | vhost: vhost_scsi_handle_vq() should just use copy_from_user() (diff) | |
| download | linux-dev-f2683b743f2334ef49a5361bf596dd1fbd2c9be4.tar.xz linux-dev-f2683b743f2334ef49a5361bf596dd1fbd2c9be4.zip | |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
More iov_iter work from Al Viro.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 1b326ed46f7b..4fcc9a768849 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3055,7 +3055,7 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn) { struct tcp_sock *tp = tcp_sk(sk); struct tcp_fastopen_request *fo = tp->fastopen_req; - int syn_loss = 0, space, err = 0; + int syn_loss = 0, space, err = 0, copied; unsigned long last_syn_loss = 0; struct sk_buff *syn_data; @@ -3093,11 +3093,16 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn) goto fallback; syn_data->ip_summed = CHECKSUM_PARTIAL; memcpy(syn_data->cb, syn->cb, sizeof(syn->cb)); - if (unlikely(memcpy_fromiovecend(skb_put(syn_data, space), - fo->data->msg_iter.iov, 0, space))) { + copied = copy_from_iter(skb_put(syn_data, space), space, + &fo->data->msg_iter); + if (unlikely(!copied)) { kfree_skb(syn_data); goto fallback; } + if (copied != space) { + skb_trim(syn_data, copied); + space = copied; + } /* No more data pending in inet_wait_for_connect() */ if (space == fo->size) |