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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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5
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; int rover;
spin_lock(&tcp_portalloc_lock); spin_lock(&tcp_portalloc_lock);
if (tcp_port_rover < low)
rover = low;
else
rover = tcp_port_rover; rover = tcp_port_rover;
do { do {
rover++; rover++;
if (rover < low || rover > high) if (rover > high)
rover = low; rover = low;
head = &tcp_bhash[tcp_bhashfn(rover)]; head = &tcp_bhash[tcp_bhashfn(rover)];
spin_lock(&head->lock); spin_lock(&head->lock);