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net: poll() optimizations

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No need to test twice sk->sk_shutdown & RCV_SHUTDOWN

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2010-09-06 11:13:50 +00:00
committed by David S. Miller
parent d61702f127
commit db40980fcd
4 changed files with 8 additions and 12 deletions
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5
net/bluetooth/af_bluetooth.c
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@@ -297,13 +297,12 @@ unsigned int bt_sock_poll(struct file * file, struct socket *sock, poll_table *w
mask |= POLLERR;
if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP;
mask |= POLLRDHUP | POLLIN | POLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
if (!skb_queue_empty(&sk->sk_receive_queue) ||
(sk->sk_shutdown & RCV_SHUTDOWN))
if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
if (sk->sk_state == BT_CLOSED)