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authorJarek Poplawski <jarkao2@gmail.com>2008-12-09 22:34:40 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-09 22:34:40 -0800
commit1b5c0077e1615bb16e777a10ec1fc1195ba059ac (patch)
tree9f00035466fbdb8b41d360730bc0be99a91b1148 /net/sched
parentdbb7a95d810ab76aac42e1a5cefdf069dcd014a1 (diff)
downloadop-kernel-dev-1b5c0077e1615bb16e777a10ec1fc1195ba059ac.zip
op-kernel-dev-1b5c0077e1615bb16e777a10ec1fc1195ba059ac.tar.gz
pkt_sched: sch_htb: Optimize htb_find_next_upper()
htb_id_find_next_upper() is usually called to find a class with next id after some previously removed class, so let's move a check for equality to the end: it's the least likely here. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_htb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index f89fd71..b820a0a 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -698,14 +698,14 @@ static struct rb_node *htb_id_find_next_upper(int prio, struct rb_node *n,
while (n) {
struct htb_class *cl =
rb_entry(n, struct htb_class, node[prio]);
- if (id == cl->common.classid)
- return n;
if (id > cl->common.classid) {
n = n->rb_right;
- } else {
+ } else if (id < cl->common.classid) {
r = n;
n = n->rb_left;
+ } else {
+ return n;
}
}
return r;
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