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authorFolkert van Heusden <folkert@vanheusden.com>2005-05-03 14:36:08 -0700
committerDavid S. Miller <davem@davemloft.net>2005-05-03 14:36:08 -0700
commit0b2531bdc54e19717de5cb161d57e5ee0a7725ff (patch)
tree09660a0562dd1bdc6c1539d24d539ea49973335f /net
parent20cc6befa23bb993cf4a4c58becb1dd99e7fc927 (diff)
downloadlinux-0b2531bdc54e19717de5cb161d57e5ee0a7725ff.tar.bz2
[TCP]: Optimize check in port-allocation code.
Signed-off-by: Folkert van Heusden <folkert@vanheusden.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_ipv4.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3ac6659869c4..dad98e4a5043 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -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);