diff options
| author |   Andrew Morton <akpm@osdl.org> | 2007-03-08 09:57:36 -0800 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2007-07-11 16:10:53 -0700 |
| commit | e00c5d8b4d800b95b72b3f072e1d55d7c7034702 (patch) | |
| tree | 737ffff95a250bcb344de7263e059eeb0df97678 /net/ipv4/tcp.c | |
| parent | I/OAT: Only offload copies for TCP when there will be a context switch (diff) | |
| download | linux-dev-e00c5d8b4d800b95b72b3f072e1d55d7c7034702.tar.xz linux-dev-e00c5d8b4d800b95b72b3f072e1d55d7c7034702.zip | |
I/OAT: warning fix
net/ipv4/tcp.c: In function 'tcp_recvmsg':
net/ipv4/tcp.c:1111: warning: unused variable 'available'
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 0eb7cf1002c1..987b94403be5 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1116,7 +1116,6 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, long timeo; struct task_struct *user_recv = NULL; int copied_early = 0; - int available = 0; struct sk_buff *skb; lock_sock(sk); @@ -1145,15 +1144,22 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, tp->ucopy.dma_chan = NULL; preempt_disable(); skb = skb_peek_tail(&sk->sk_receive_queue); - if (skb) - available = TCP_SKB_CB(skb)->seq + skb->len - (*seq); - if ((available < target) && - (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) && - !sysctl_tcp_low_latency && __get_cpu_var(softnet_data).net_dma) { - preempt_enable_no_resched(); - tp->ucopy.pinned_list = dma_pin_iovec_pages(msg->msg_iov, len); - } else - preempt_enable_no_resched(); + { + int available = 0; + + if (skb) + available = TCP_SKB_CB(skb)->seq + skb->len - (*seq); + if ((available < target) && + (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) && + !sysctl_tcp_low_latency && + __get_cpu_var(softnet_data).net_dma) { + preempt_enable_no_resched(); + tp->ucopy.pinned_list = + dma_pin_iovec_pages(msg->msg_iov, len); + } else { + preempt_enable_no_resched(); + } + } #endif do { |