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[TCP]: Optimize check in port-allocation code.

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Signed-off-by: Folkert van Heusden <folkert@vanheusden.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Folkert van Heusden 2005-05-03 14:36:08 -07:00 committed by David S. Miller
parent 20cc6befa2
commit 0b2531bdc5
1 changed files with 5 additions and 2 deletions
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7
net/ipv4/tcp_ipv4.c
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@ -222,10 +222,13 @@ static int tcp_v4_get_port(struct sock *sk, unsigned short snum)
int rover;
spin_lock(&tcp_portalloc_lock);
rover = tcp_port_rover;
if (tcp_port_rover < low)
rover = low;
else
rover = tcp_port_rover;
do {
rover++;
if (rover < low || rover > high)
if (rover > high)
rover = low;
head = &tcp_bhash[tcp_bhashfn(rover)];
spin_lock(&head->lock);